St John was notified at 9.49am today.

Police fear Leonie Emery has been the victim of foul play.

Seven children in Australia and the Philippines have been rescued after a Queensland man was arrested and charged with 28 child exploitation and drug offences by police.

Police raided the 31-year-old's home at Moreton Bay, north of Brisbane, last December and arrested him after detectives from Redcliffe Child Protection Investigation Unit (CPIU) received a tip-off.

Officers also seized several devices.

LIVE UPDATES: Leaders in last-minute dash to convince voters

He was initially charged with possessing child exploitation material and using a carriage service to menace, harass or cause offence.

Later he was charged with a further 24 offences, including supplying dangerous drugs, using the internet to procure children, facilitating the procurement of a child for a sexual act and indecent treatment of a child under 12 with mental impairment.

Since his arrest, seven child victims – two in south-east Queensland and five in the Philippines – have been rescued.

Queensland police Detective-Inspector Phil Hurst said the man's arrest was the culmination of a lengthy and complex investigation.

"I thank the CPIU detectives for their tenacity in going to lengths to ensure the victims were identified and, in some cases, rescued from harm," he said.

"This shows that we will investigate all reports of harm against children both locally and even if it leads us overseas."

The man has been remanded in custody and is due to reappear in court on Thursday.

DOWNLOAD THE 9NEWS APP: Stay across all the latest in breaking news, sport, politics and the weather via our news app and get notifications sent straight to your smartphone. Available on the Apple App Store and Google Play.

President Donald Trump said he viewed his Ukrainian counterpart Volodymyr Zelenskyy as "calmer" and more interested in reaching a peace accord following their sit-down inside the Vatican this weekend.

Trump called the meeting "beautiful" and said Zelenskyy asked for more weapons during the 15-minute session.

Trump continued voicing his frustration at President Vladimir Putin for launching a missile attack on Kyiv, and said he could not say for sure whether the Russian leader was serious about ending the war.

READ MORE: Donald Trump's approval at 100 days lower than any president in at least seven decades

"I think the meeting went well. We'll see what happens over the next few days. We'll probably learn a lot. I was very disappointed that missiles were flying by Russia," Trump said as he was departing New Jersey, where he spent part of the weekend at his golf club.

He said during his meeting at St Peter's with Zelenskyy they briefly discussed the issue of Crimea, which the US would recognise as Russian under an American peace proposal that Zelenskyy has rejected.

Trump denied his relationship with Zelenskyy was ever bad, saying instead their televised dispute in February was merely a small obstacle.

READ MORE: It might be Carney vs Poilievre to lead Canada, but Trump is unofficially on the ballot

"I see him as calmer. I think he understands the picture. And I think he wants to make a deal," Trump said.

Putin, he said, needed to demonstrate a commitment to ending the war.

"I want him to stop shooting, sit down and sign a deal," Trump said. "We have the confines of a deal, I believe, and I want him to sign it and be done with it and just go back to life."

Donald Trump might as well be on the ballot when Canadians vote for a new government.

The US president's trade war and threats to make Canada the 51st state have infuriated Canadians and led to a surge in nationalism that has helped the Liberal Party flip the narrative heading into Monday's parliamentary election, at least in opinion polls.

"Trump is the campaign," former Quebec Premier Jean Charest said.

READ MORE: Anthony Albanese wins final leaders' debate, Peter Dutton calls welcome to country ceremonies 'overdone' 

"The ballot question is who is the person we are going to choose to face Trump. Everything has changed."

Foreign policy hasn't affected a Canadian election this much since 1988, when, ironically, free trade with the United States dominated the political discourse.

Prime Minister Mark Carney, the Liberal leader who was sworn in on March 14 following Justin Trudeau's resignation, led in the polls heading into Monday, marking a dramatic turnaround for a party that seemed destined for a crushing defeat until Trump started launching broadsides at Canada's economy and sovereignty.

"We are in a crisis. President Trump is threatening Canada, he's threatening our companies, he's threatening our workers, he's threatening the savings of our retirees," Carney said on Tuesday.

"This threat is not only an economic threat, it is an existential threat."

Until a few months ago, Conservative Party leader Pierre Poilievre was seen as a shoo-in to become the next prime minister by shepherding his opposition faction back into power for the first time in a decade.

READ MORE:  Five charged after brawl at Sydney U7s football game 

Trump's tough talk could hurt his ideological allies abroad

Charest, a moderate who led Canada's French-speaking province from 2003-2012, said if Trump wants to help his ideological allies abroad, he needs to tone down the bluster.

"At what point are the Trump folks going to think this thing through and measure what are the consequences?" Charest said.

"In the White House, they should sit down and think about the effect Trump has in the world," he added.

Carney has accused Trump of severing the close relationship that Canada and the US long enjoyed.

Poilievre, meanwhile, would be "very much in sync" with the "new direction in America", said Alberta Premier Danielle Smith, a Conservative ally.

As such, Poilievre has offered a more muted response to Trump's rhetoric and economic manoeuvring, imploring Canadians to deny the Liberals a fourth-straight term after what he described as "a lost Liberal decade."

READ MORE: Massive explosion at Iranian port kills 28 and injures hundreds

What will the result of Canada's election mean for the US?

Trump has threatened to slap steep tariffs on Canadian goods, and both Carney and Poilievre said that, if elected, they would accelerate renegotiations of the countries' free trade deal in an effort to end the uncertainty hurting both of their economies.

Carney plans to diversify Canada's exports and is reviewing the remaining purchase order of US F-35 fighter jets to see if there are other options "given the changing environment". Carney visited Paris and London, not Washington, for his first trips as prime minister.

But almost 80 per cent of Canada's exports go to the US.

"Let's be honest, if Canada does a remarkable job — a remarkable job — of diversifying trade, what is that going to look like?" said former Foreign Minister John Baird, noting that even shifting 3 per cent – 5 per cent over five years would be quite an achievement.

"Let's keep our eye on the main ball. They are 78 per cent of our customers so we need to tackle that challenge," said Baird, a Conservative who works as a senior adviser at a law firm.

What do the polls say?

In a mid-January poll by Nanos, Liberals trailed the Conservative Party by 47 per cent to 20 per cent.

In the latest Nanos poll, which was conducted during a three-day period that ended April 26, the Liberals led by 4 percentage points nationally and 6 points in Ontario, Canada's most populous province, which has 122 of the 343 seats in Parliament.

The January poll had a margin of error 3.1 points, while the latest poll had a 2.7-point error margin.

DOWNLOAD THE 9NEWS APP: Stay across all the latest in breaking news, sport, politics and the weather via our news app and get notifications sent straight to your smartphone. Available on the Apple App Store and Google Play.

One of the world's most obscure "sports" held its annual championship at the weekend.

Police are investigating the death of a man near the Brisbane central business district overnight.

He was asked to leave a business on the corner of Ann and Morgan streets in Fortitude Valley about 12.20am before being restrained by security guards.

Moments later, he became unresponsive and died at the scene, despite CPR being given.

LIVE UPDATES: Anthony Albanese, Peter Dutton in last-minute dash to convince voters

A crime scene has been declared, and investigations are ongoing today.

Anyone with information or relevant dashcam or CCTV vision should contact Policelink and quote reference number QP2500727851.

DOWNLOAD THE 9NEWS APP: Stay across all the latest in breaking news, sport, politics and the weather via our news app and get notifications sent straight to your smartphone. Available on the Apple App Store and Google Play.

Donald Trump won back the Oval Office and took charge of the government amid the strongest poll numbers of his political career, but as the 100-day mark of his presidency approaches, Americans' views of what he's done so far have turned deeply negative, a new CNN poll has found.

Trump's 41 per cent approval rating is the lowest for any newly elected president at 100 days dating back at least to Dwight Eisenhower – including Trump's own first term.

Approval of Trump's handling of the presidency is down 4 points since March, and 7 points lower than it was in late February. Just 22 per cent say they strongly approve of Trump's handling of the job, a new low, and about twice as many say they strongly disapprove (45 per cent).

LIVE UPDATES: Anthony Albanese, Peter Dutton in last-minute dash to convince voters

Since March, Trump has suffered notable drops in approval from women and Hispanic Americans (down 7 points in each group to 36 per cent among women and 28 per cent among Hispanics).

Partisan views of Trump remain broadly polarised, with 86 per cent of Republicans approving and 93 per cent of Democrats disapproving. But among political independents, the president's approval rating has dipped to 31 per cent, matching his first-term low point with that group and about the same as his standing with them in January 2021.

The poll finds the president underwater and sinking across nearly all major issues he's sought to address during his time in office, with the public's confidence in his ability to handle those issues also on the decline.

Trump's approval ratings on economic issues have dropped notably since early March as the rollout of his tariff plan led to volatility in the stock market and worries about rising prices.

On inflation, approval is down 9 points to 35 per cent, and on tariffs themselves, it's down 4 points to 35 per cent. His marks for handling the economy are down 5 points to a career-low of 39 per cent; he hit his previous low once in his first term and again this March).

Only about half (52 per cent) express confidence in his ability to deal with the economy, down 13 points compared with a December CNN poll.

READ MORE: Kim Kardashian expected to testify about violent 2016 Paris robbery as alleged 'Grandpa Gang' faces trial

"I'm disappointed. I didn't vote for him. I was going to give him the benefit of doubt, because I figured, you know, he could do things to help the economy and … further disappointment," said a 55-year-old Virginia resident who identifies as an independent and participated in the poll. She has worked for the federal government for more than two decades and asked that her name not be used.

Following his far-reaching efforts to reshape the federal government's workforce, Trump has lost ground on approval ratings for managing the federal government (42 per cent approve, down 6 points since March) and only 46 per cent express confidence in him to appoint the best people to office, down 8 points since December. Less than half (43 per cent) see Trump's actions as a necessary shake-up in Washington, while most (57 per cent) say his approach to the presidency is unnecessarily putting the country at risk.

Derek Steinmetz, a Democrat from Wauwatosa, Wisconsin, said he was most concerned by Trump's "overarching disregard for the rule, and the norms, and the structure of our government. It was a concern the first term, but it's much worse this time around because there are fewer guardrails in place."

Trump's moves on foreign affairs – which have included a more friendly posture toward Russia in its war with Ukraine and ending many foreign aid programs – are also seeing majority disapproval (39 per cent approve, 60 per cent disapprove). Half say they have a lot or some confidence in his ability to handle foreign affairs, down from 55 per cent before he took office.

Even on immigration, an issue where Trump had outperformed his first-term high by 7 points earlier this year, the poll finds declining approval ratings and diminished confidence in Trump's actions. Overall, 45 per cent approve now, down 6 points from March, and 53 per cent express confidence in his ability to deal with it, down from 60 per cent in December.

Trump earns narrowly positive ratings on only one issue tested in the poll: his handling of issues related to gender identity and trans people. Overall, 51 per cent approve of his handling of that matter, including 90 per cent of Republicans, 48 per cent of independents and 16 per cent of Democrats.

READ MORE: It might be Carney vs Poilievre to lead Canada, but Trump is unofficially on the ballot

"I'm actually quite glad he said that there's only male and female. I was actually quite glad when that came out, when he put that into law, that there's only male and there's only female, that there's no binary, he, she, they. There's no they," said Lisa Munson, a Maryland mother-of-three who voted for Trump, when asked what she considers to be Trump's biggest accomplishment.

Trump's efforts at shaping arts, culture and American history, though, are far less popular, with 64 per cent considering it inappropriate for him to take actions like seizing control of the Kennedy Center for the Performing Arts and seeking changes in exhibits at Smithsonian Institution museums, an effort he delegated in part to Vice President JD Vance.

Vance matches Trump's 41 per cent job approval rating overall in the poll, with 58 per cent disapproving. Neither Trump nor Vance is viewed favourably by most Americans. Just 40 per cent say they have a favourable view of the president and 34 per cent a favourable view of Vance.

Overall, Americans' confidence in Trump to use the power of the presidency responsibly (46 per cent confident, down 8 points) and to provide real leadership for the country (50 per cent confident, down 9 points) have dropped sharply since December. Trump has issued a slew of executive orders directing changes to government practices and policy that have faced myriad challenges in court.

"I'm not a big fan of these executive orders that Trump and all the other presidents issue constantly. In Trump's case, I think that he goes overboard on these executive orders, and that's why a lot of them get shot down by the courts, you don't have the authority to do that," said George Mastrodonato, a Trump voter and partially retired lawyer who lives in Santa Fe, New Mexico and participated in the poll.

"I wish he would be a little more discreet and focus on the executive orders that he writes and issues that he could win in court. He seems to be like Yosemite Sam, you know? Blasting off with two guns in both hands, and some of them stick and some of them don't."

Just over half of Americans (52 per cent), including majorities of both Democrats and Republicans, say Trump's second presidency will fundamentally change the country in a lasting way. A little more than a third (36 per cent) say any significant changes Trump makes will fade once he leaves office, and only 12 per cent say Trump's second term will not result in significant changes to the country.

Still, Americans are closely split on whether Trump has kept important campaign promises. Just shy of half, 48 per cent, say he's doing a good job of it, 51 per cent a bad job – numbers that closely mirror this point in his first term. A 55 per cent majority say he's taken at least some actions to effectively address the nation's problems, though only 28 per cent believe he's done things that have already started to help address the country's problems.

Mastrodonato, the Trump voter from New Mexico, also largely sees Trump as keeping his promises. "He's doing what he said he would do. Some of his approaches, I would take a different approach, but, you know, he's Donald Trump so, he's going to do whatever he wants to do."

The CNN poll was conducted among 1678 adults nationwide by SSRS from April 17-24, using a combination of online and telephone interviews. The survey samples were originally drawn from two sources – a probability-based online panel and a registration-based sample – and combined. Respondents were initially contacted by mail, phone or email. Results for the full sample have a margin of sampling error of plus or minus 2.9 points.

Iran's president has visited those injured in a huge explosion that rocked one of the Islamic Republic's main ports, a facility purportedly linked to an earlier delivery of a chemical ingredient used to make missile propellant.

The visit on Sunday by President Masoud Pezeshkian came as the toll from Saturday's blast at the Shahid Rajaei port outside of Bandar Abbas in southern Iran's Hormozgan province rose to 40 with about 1,000 others injured.

While Iran's military sought to deny the delivery of ammonium perchlorate from China, new videos emerged showing an apocalyptic scene at the still-smouldering port.

A crater that appeared metres deep sat surrounded by burning smoke so dangerous that authorities closed schools and businesses in the area.

Containers appeared smashed or thrown as if discarded toys, while the burned carcasses of trucks and cars sat around the site.

"We have to find out why it happened," Pezeshkian said during a meeting with officials aired by Iranian state television.

Authorities described the fire as being under control, saying emergency workers hoped that it would be fully extinguished later Sunday.

Overnight, helicopters and heavy cargo aircraft flew repeated sorties over the burning port, dumping seawater on the site.

Satellite pictures taken on Sunday by Planet Labs PBC and analysed by The Associated Press showed a huge plume of black smoke still over the site.

LIVE UPDATES: Anthony Albanese, Peter Dutton in last-minute dash to convince voters

Provincial Governor Mohammad Ashouri gave the latest death toll, Iranian state TV reported. Pir Hossein Kolivand, head of Iran's Red Crescent society, said that only 190 of about 1000 injured remained hospitalised on Sunday, according to a statement carried by an Iranian government website. The governor declared three days of mourning.

Private security firm Ambrey says the port received missile fuel chemical in March.

It was part of a shipment of ammonium perchlorate from China by two vessels to Iran, first reported in January by the Financial Times.

The chemical used to make solid propellant for rockets was going to be used to replenish Iran's missile stocks, which had been depleted by its direct attacks on Israel during the war with Hamas in the Gaza Strip.

Ship-tracking data analysed by the AP put one of the vessels believed to be carrying the chemical in the vicinity in March, as Ambrey said.

"The fire was reportedly the result of improper handling of a shipment of solid fuel intended for use in Iranian ballistic missiles," Ambrey said.

In a first reaction on Sunday, Iranian Defense Ministry spokesman General Reza Talaeinik denied that missile fuel had been imported through the port.

"No sort of imported and exporting consignment for fuel or military application was (or) is in the site of the port," he told state television by telephone.

He called foreign reports on the missile fuel baseless — but offered no explanation for what material detonated with such incredible force at the site. Talaeinik promised authorities would offer more information later.

It's unclear why Iran wouldn't have moved the chemicals from the port, particularly after the Beirut port blast in 2020.

That explosion, caused by the ignition of hundreds of tons of highly explosive ammonium nitrate, killed more than 200 people and injured more than 6000 others.

However, Israel did target Iranian missile sites where Tehran uses industrial mixers to create solid fuel — meaning potentially that it had no place to process the chemical.

Social media footage of the explosion on Saturday at Shahid Rajaei saw reddish-hued smoke rising from the fire just before the detonation.

That suggests a chemical compound being involved in the blast, like in the Beirut explosion.

Meanwhile on Sunday, Russian President Vladimir Putin deployed several emergency aircraft to Bandar Abbas to provide assistance.

DOWNLOAD THE 9NEWS APP: Stay across all the latest in breaking news, sport, politics and the weather via our news app and get notifications sent straight to your smartphone. Available on the Apple App Store and Google Play.

Russia has launched a sweeping drone assault and airstrikes across Ukraine, killing at least four people, officials say, after US President Donald Trump cast doubt over Russian President Vladimir Putin's willingness to end the war.

Three people died and four were wounded overnight into Sunday (Sunday afternoon AEST) in airstrikes on Kostyantynivka in the Donetsk region, the regional prosecutor's office said.

Another person died and a 14-year-old girl was wounded in a drone attack on the city of Pavlohrad in the Dnipropetrovsk region, which was hit for the third consecutive night, local Governor Serhii Lysak said.

READ MORE: Anthony Albanese wins final leaders' debate, Peter Dutton calls welcome to country ceremonies 'overdone' 

The attacks came hours after Russia claimed to have regained control over the remaining parts of the Kursk region, which Ukrainian forces seized in a surprise incursion last August. Ukrainian officials said the fighting in Kursk was still ongoing.

Trump said on Saturday that he doubts Putin wants to end the more than three-year war in Ukraine, expressing new scepticism that a peace deal can be reached soon.

Only a day earlier, Trump had said Ukraine and Russia were "very close to a deal".

"There was no reason for Putin to be shooting missiles into civilian areas, cities and towns, over the last few days," Trump wrote in a social media post as he flew back to the United States after attending Pope Francis' funeral at the Vatican, where he met briefly with Ukrainian President Volodymyr Zelenskyy. Trump also hinted at further sanctions against Russia.

The Trump-Zelenskyy conversation on the sidelines of the pope's funeral was the first face-to-face encounter between the two leaders since they argued during a heated Oval Office meeting at the White House in late February.

Russia fired 149 exploding drones and decoys in the latest wave of attacks, the Ukrainian air force said, adding that 57 were intercepted and another 67 jammed.

READ MORE:  Five charged after brawl at Sydney U7s football game 

READ MORE: Massive explosion at Iranian port kills 28 and injures hundreds

One person was wounded in drone attacks on the Odesa region and one other in the city of Zhytomyr. Four people were also wounded in a Russian airstrike on the city of Kherson on Sunday morning, according to local officials.

Russia's Defence Ministry said on Sunday that air defences shot down five Ukrainian drones in the border region of Bryansk, as well as three drones over the Crimean peninsula, which was illegally annexed by Russia in 2014.

Five people were wounded when Ukrainian forces shelled the city of Horlivka in the partially occupied Donetsk region, the city's Russian-installed Mayor Ivan Prikhodko said.

DOWNLOAD THE 9NEWS APP: Stay across all the latest in breaking news, sport, politics and the weather via our news app and get notifications sent straight to your smartphone. Available on the Apple App Store and Google Play.