Within hours of being sworn in as president, Donald Trump has made a series of sweeping changes to immigration policy that will likely create chaos at the border and throughout the United States.

The changes include mass deportations, an end to birthright citizenship and the shutting down of a Biden-era app credited with bringing the border under control.

So what will Trump's immigration crackdown look like?

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Birthright citizenship

Trump's most impactful executive order is a ban on birthright citizenship.

Birthright citizenship means anybody born in the United States is immediately a citizen.

But Trump has demanded an end to the practice, meaning the child of undocumented migrants or temporary residents would not have citizenship.

But the president has already been sued by attorneys general from 22 states.

The executive order, in spite of citing the 14th amendment of the Constitution, appears to be clearly in breach of the amendment.

Which means ending birthright citizenship could not be overturned by an executive order but by a two-thirds majority of both houses of Congress and two-thirds of state legislatures.

READ MORE: States line up to challenge major Trump order

Mass deportation

Trump has already announced mass deportations of undocumented migrants will take place "very quickly", focusing on major cities.

Trump's Acting Homeland Security Secretary Benjamine Huffman said Immigration and Customs Enforcement (ICE) officers were now allowed to raid schools, hospitals and churches to arrest suspected illegal migrants.

"Criminals will no longer be able to hide in America's schools and churches to avoid arrest," Huffman said in a statement.

"The Trump Administration will not tie the hands of our brave law enforcement, and instead trusts them to use common sense."

The policy to avoid arrests in churches and schools has been in place since 2011.

Trump's border czar Tom Homan said the deportations would start out "targeted" to so-called "sanctuary cities".

CNN reported the deportations will begin with crackdowns in Washington DC, Denver and Chicago, all cities that voted heavily against Trump.

Detainees

One of the enduring images of Trump's first term was of children in cages, sleeping on the floors of large buildings.

Trump has already promised to arrest and deport 11 million.

But ICE currently only has access to 40,000 detention beds.

Homan said ICE would need a minimum of 100,000 beds to detain undocumented immigrants.

One of the enduring problems of American immigration is the immense backlog of cases waiting trial.

There is a backlog of more than three million cases in immigration court, with a severe shortage of judges contributing to the problem.

But on Trump's first day in office, the head of the immigration court system and three other senior officials were sacked.

The border

Border crossings have been dropping as Joe Biden's term wrapped up, with last month's numbers now lower than under the Trump years.

The decline in crossings has been credited in large part to CBP One, an app that allowed would-be migrants seeking protection from violence, poverty or persecution to make asylum appointments.

But yesterday the app was shut down and more than 30,000 pending appointments were cancelled.

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Supporters of the app said it brought order to the border. Detractors said it merely made it easier for migrants to get into America legally.

Removing the app would require tens of thousands of migrants to stay in Mexico in a legal no-man's-land.

With most asylum seekers at the border coming from other countries, Mexico has reason to ask why America insists they stay put there.

And without the legal avenue to enter legally, crossing illegally may seem like the only viable alternative.

Refugees

Trump has also issued an executive order stopping refugees from being resettled in the United States.

"Cities and small towns alike, from Charleroi, Pennsylvania, and Springfield, Ohio, to Whitewater, Wisconsin, have seen significant influxes of migrants," the executive order read.

"Even major urban centres such as New York City, Chicago, and Denver have sought Federal aid to manage the burden of new arrivals."

The ban applies in part to 1660 Afghan refugees whose lives are in danger because they helped Americans during the long war there.

"We can't afford to leave these folks behind, right? These folks are in hiding there," refugee advocate and navy veteran Shawn VanDiver was quoted as saying.

"There are probably tens of thousands of people whose lives are at risk because of their association with the United States."

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A fire raged through a 12-storey hotel at a popular ski resort in north-western Turkey early on Tuesday during a school holiday, killing at least 76 people — at least two of them when they jumped from the building to escape the flames.

At least 51 people were also injured in the fire at the Grand Kartal hotel in Kartalkaya, in Bolu province's Koroglu mountains, some 300km east of Istanbul, said Interior Minister Ali Yerlikaya. The fire occurred near the start of a two-week winter break for schools, when hotels in the region are packed.

"We are in deep pain. We have unfortunately lost 66 lives in the fire that broke out at this hotel," Yerlikaya said after inspecting the site.

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The fire erupted at 3.30am (5.30pm AEDT) in the restaurant of the 12-storey Grand Kartal hotel in the resort of Kartalkaya in Bolu province, officials and reports said.

The cause of the fire was under investigation. Two of the victims died after jumping from the building in a panic, Governor Abdulaziz Aydin told the state-run Anadolu Agency.

Atakan Yelkovan, a hotel guest staying on the third floor, told the IHA news agency there was chaos on the upper floors as other guests tried to escape the fire, including by trying to climb down from their rooms using sheets and blankets

"People on the upper floors were screaming. They hung down sheets … Some tried to jump," Yelkovan said.

Yerlikaya said 45 of the 76 people killed have been identified while efforts to identify the other victims were continuing.

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The government appointed six prosecutors to lead an investigation into the blaze, which is believed to have started in the hotel's restaurant section. Nine people have been detained as part of the investigation into the fire, Yerlikaya said. Earlier,

Justice Minister Yilmaz Tunc said the hotel's owner was among the people detained for questioning in the probe.

Witnesses and reports said the hotel's fire detection system failed to operate.

Turkish President Recep Tayyip Erdogan announced a day of national mourning to be observed on Wednesday. All flags at government buildings and Turkish diplomatic mission abroad would be lowered to half-staff, he said.

Necmi Kepcetutan, a ski instructor at the hotel, said he was asleep when the fire erupted and he rushed out of the building. He told NTV television that he then helped some 20 guests out of the hotel.

"My wife smelled the burning. The alarm did not go off," Atakan Yelkovan, a guest staying on the third floor of the hotel, told the IHA news agency.

"We tried to go upstairs but couldn't, there were flames. We went downstairs and came here (outside)," he said.

Yelkovan said it took about an hour for the firefighting teams to arrive.

"People on the upper floors were screaming. They hung down sheets … some tried to jump," he said.

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The 161-room hotel is on the side of a cliff, hampering efforts to combat the flames, the station also reported.

NTV showed a smoke-blackened lobby, its glass entrance and windows smashed, its wooden reception desk charred and a chandelier crashed to the ground.

Kartalkaya is a popular ski resort in the Koroglu mountains, some 300 kilometres east of Istanbul. The fire occurred during the school semester break when hotels in the region are packed.

Aydin's office said 30 fire trucks and 28 ambulances were sent to the site.

Other hotels at the resort were evacuated as a precaution and guests were placed in hotels around Bolu.

Meanwhile, a natural gas explosion at a hotel at another ski resort in central Turkey injured four people.

The explosion took place at the Yildiz Mountain Winter Sports Centre in Sivas province. Two alpine skiers and their instructor were slightly injured while another instructor received second-degree burns on the hands and face, the Sivas governor’s office said.

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Adelaide Zoo's new pandas have gone public and are already seemingly right at home.

A month after their arrival from China, Xing Qiu and Yi Lan are out of quarantine and have made their grand debut in the zoo's bamboo forest, captivating crowds with their playful antics.

Yi Lan, the younger of the pair, was particularly active, climbing trees and investigating a welcome gift, much to the delight of onlookers. 

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The pandas' arrival marks a significant milestone, as they are the only pandas in the Southern Hemisphere at the moment.

"Yi Lan is an incredibly cheeky young panda and it's something we're really looking forward to sharing with the community and Xing Qiu is definitely settling in," Dr Phil Ainsley from Adelaide Zoo said.

During their quarantine period, Xing Qiu and Yi Lan underwent careful acclimatisation to their new environment and the Australian climate.

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Now there's a new wait, for the pair to reach breeding age.

"We cross our fingers that who knows, maybe these two new pandas get along particularly well and may well produce another panda here in the Southern Hemisphere," South Australian Premier Peter Malinauskas said.

This article was produced with the assistance of 9ExPress.

An Australian trans advocate has vowed a "speech or policy" could never erase a global community, after US President Donald Trump announced plans to roll back transgender protections.

Trump is expected to sign an executive order, which will officially recognise only two sexes, male and female, reversing efforts by the Biden administration to expand gender identity designations, including on passports.

The move will create an even more hostile environment for trans people than ever before, Teddy Cook told 9news.com.au.

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Cook, who has been an activist for more than two decades, said the type of rhetoric being discussed was incredibly "harmful".

"A trans person in America is certainly waking up today in a much more hostile environment that existed yesterday. But yesterday was also incredibly hostile for trans people," he said. 

"We're not moving into an unsafe place. The unsafe place we're already in is just being expanded."

According to Trump's administration official, the order was aimed at "defending women from gender ideology extremism and restoring biological truths to the federal government.

The federal government would also shift from using the term "gender" to "sex," and that sex would be "an individual's immutable biological classification," the official said.

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At least a dozen measures combating discrimination and supporting racial equity are expected to be repealed by Trump.

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Cook said he would be thinking of trans advocates in the US and all over the world today, who have worked "tirelessly to protect, uplift, and support the trans experience".

"It's not as if Australian trans people are living in a utopia. I've lost many trans people to suicide over the last couple of years," he said.

"The lived experience of a trans person has improved considerably. But we are still one of the most vulnerable, neglected and at-risk populations in Australia.

"A speech, a policy or a press release could never erase us," he said.

"Trans people of all genders will continue being part of every community, despite attempts otherwise.

"We've already long learned that no one can take away trans joy and who we know ourselves to be, the biggest thing to remember is that we're never alone."

Counselling and referral services for LGBTIQ+ individuals are available through QLife on 1800 184 527 or online.

Crisis support is available from Lifeline on 13 11 14.

President Donald Trump an first lady Melania Trump recognised military service members at the Commander-in-Chief Ball.

In Israel, many cite US President Donald Trump's reelection as a catalyst for the new ceasefire agreement and release of Israeli hostages from Gaza.

Two men have died and a woman has been taken to hospital after a boat capsized off of a beach on South Australia's Mid Coast.

The incident happened off of a beach near Point Connor, just south of Beachport, about 11.30am (12pm AEST).

Police and SA Ambulance crews were called to reports of three people unresponsive on the shore, according to SA Police.

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Two men aged 82 and 69 were pronounced dead at the scene.

A 59-year-old woman has been taken to hospital.

All three people are from the nearby town of Millicent.

Investigations into the circumstances surrounding the incident are ongoing with the assistance of the Water Operations Unit.

There are no suspicious circumstances.

Police will be preparing a report for the Coroner.

Anthony Albanese took the opportunity to slam the Coalition's handling of the detention of Serbian tennis star Novak Djokovic during the COVID-19 pandemic while speaking to media in Queensland today.

The prime minister was asked about Djokovic having told media he feels traumatised coming to Melbourne since the incident, and whether Albanese thought the tennis player was treated fairly in January 2022.

Then-immigration minister Alex Hawke denied Djokovic entry into the country for the Australian Open in 2022 because he was not fully vaccinated. Djokovic, who was the world No.1 men's singles player at the time, was detained at Melbourne's Park Hotel for five days as he challenged the decision before he was sent home.

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"I made comments about it at the time," Albanese responded to the question today, whilst making an election pledge in Gympie.

"I found it astonishing that in the lead-up to Christmas, Novak Djokovic was denied by the then-federal government the opportunity to see his Orthodox minister, priest during that period.

"That was something that I think was hard to justify."

Djokovic had travelled to Australia claiming a medical exemption because he had recently had COVID-19.

This morning Djokovic told the Herald Sun he had had "a bit of trauma from three years ago" while going through immigration after landing in Australia for the Australian Open events since.

In contrast to Albanese, Victorian Premier Jacinta Allan didn't hit out at the former Coalition government when also asked about the issue at a media event in Melbourne this morning.

"Visas are a federal government decision and look, COVID was tough for all of us," she said.

"It didn't matter who you were and what you did. It was a tough time for all of us."

Allan said she was more focused on the thousands of people flocking to Melbourne for this year's Australian Open.

"The pandemic is behind us and what I'm focused on is supporting a great Australian Open for 2025.

"….Those decisions were made by the federal government at the time."

When Djokovic's appeal against the decision to deny him entry to Australia was denied in 2022, then-prime minister Scott Morrison welcomed the decision and said it was "time to get on with the Australian Open".

"Strong borders are fundamental to the Australian way of life, as is the rule of law," he said.

"Our government has always understood this and has been prepared to take the decisions and actions necessary to protect the integrity of our borders."

One of the nation's deadliest roads will be given a major safety overhaul if Labor is re-elected at the federal election.

Labor's $7.2 billion scheme would see more of the Bruce Highway, which stretches for 1673km in Queensland, finally given a long awaited upgrade.

The road connects Brisbane with Bundaberg, Rockhampton, Mackay, Townsville and Cairns.

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More than 40 people were killed on the stretch in 2024, with the average number of deaths and serious injuries up to five times higher than on any major highway in New South Wales or Victoria.

Two people have already been killed this year.

Sections north of Gympie will be the first to have work done.

The plan is Prime Minister Anthony Albanese's first major funding announcement ahead of this year's election.

It is due to be held no later than May 17.

He said 62 per cent of Queenslanders use the stretch of road.

"The figures are quite horrific. 41 fatalities on the Bruce Highway in 2024," he said.

"There's been two fatalities already in an accident this year.

"That's why this is a priority.

"It's a dangerous piece of highway and it needs upgrading."

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The federal government would cover 80 per cent of the cost, with the state paying the other 20 per cent. Usually the split is 50/50.

Infrastructure Minister Catherine King said the plan would save lives,

"We know that too many people lost their lives on the Bruce Highway last year," King told Today.

"In particular, unfortunately we have seen an increase in fatal accidents on this road, particularly that stretch from Gympie onwards."

Queensland Ambulance Service's Wayne Sachs from Gympie who has worked for 50 years along the road had been lobbying for change since 2009.

He said while lives have already been saved by improvements already been made in his area, more are needed.

"The fatalities have stopped, They've saved countless lives," Sachs said.

'What they're doing by doing this is just amazing. They're going to be saving literally thousands of lives."

In September data from AAMI revealed the most notorious hotspots for crashes across the country, with the Bruce Highway taking third place.

One of the road's most recent deadly crashes killed three people on a Greyhound bus.

The crash happened near the Wilson Creek Rest Area on the Bruce Highway at Gumlu, south of Townsville last winter.

After being blasted by heat as thousands returned to work this morning, commuters in Sydney faced storms on the way home and temperatures set to drop by more than 10 degrees.

The holiday heatwave in the nation's south east is firmly over, with warnings issued by the Bureau of Meteorology as the cool change swept in after days of temperatures in the 30s.

The change was set to hit the east of NSW and Sydney tonight.

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Sydney's CBD hit a top of 30 degrees today, while the temperature peaked at 40 degrees in Badgerys Creek and just under that in Penrith.

The cool change was expected about 10pm with temperatures dropping by 10 to 15 to degrees across Sydney.

Some thunderstorms began hitting Sydney's south-west this afternoon.

"It's going to bring a significant temperature drop, a burst of fresh southerly winds and rainfall," BOM meteorologist Miriam Bradbury, said.

Most of NSW was at risk of thunderstorms. The Central and Southern Tablelands of NSW, and parts of the Illawarra, were most at risk.

"In these areas severe storms may bring heavy rainfall that could lead to flash flooding," Bradbury said.

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Lightning ignites fires

Firefighters have also battled hard-to-reach blazes in Upper Colo in Sydney's far north-west, which were sparked by lightning.

The Hunter region also was struck, 30 ignition points and counting.

For the latest bushfire alerts visit the NSW RFS.

More rain on the way

Tomorrow into Wednesday, north and central eastern NSW could see more rain and storms.

Large hail and damaging winds are also forecast.

It'll drop to between 20 and 25 degrees.

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The end of the week will bring more showers.

Victoria is already seeing wet weather after a heat wave which saw a record number of people being rescued from the ocean.

Storms are possible across much of the state this afternoon and evening.

Parts of South Australia and Tasmania are also in the firing line.