US president Donald Trump has refused to rule out military action to seize Greenland, hours after an explosive text sent to Norway's prime minister was leaked.

Speaking in a phone interview with NBC News, the president was asked if he would use force to seize Greenland.

"No comment," he replied.

READ MORE: Explosive text exchange between Donald Trump and Norway's PM

He doubled down on his claims that the Norwegian government played a hand in him not winning the Nobel Peace Prize this year.

"Norway totally controls it despite what they say," he said.

"They like to say they have nothing to do with it, but they have everything to do with it."

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His comments come after a text sent to Norway's Prime Minister Jonas Gahr Store went public.

"Dear Jonas: Considering your Country decided not to give me the Nobel Peace Prize for having stopped 8 Wars PLUS, I no longer feel an obligation to think purely of Peace, although it will always be predominant, but can now think about what is good and proper for the United States of America," Trump wrote to Store.

The Nobel Peace Prize is awarded by a committee appointed by the Norwegian Parliament.

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The five member panel includes three politicians from different parties, a foreign policy scholar and a nonprofit leader.

"Denmark cannot protect that land from Russia or China, and why do they have a 'right of ownership' anyway? 

"There are no written documents, it's only that a boat landed there hundreds of years ago, but we had boats landing there, also."

Denmark started its colonisation of Greenland in 1721, decades before the United States existed as a country.

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"I have done more for NATO than any other person since its founding, and now, NATO should do something for the United States," the president wrote to Store.

"The World is not secure unless we have Complete and Total Control of Greenland."

The president is amping up his rhetoric in his ambitions for the massive island in the Atlantic, which has for centuries been a territory of Denmark.

Over the weekend Trump placed additional tariffs on eight European countries that opposed his plans to annex Greenland.

The ten per cent tariffs were placed on Denmark, Norway, Sweden, France, Germany, the United Kingdom, the Netherlands and Finland.

Denmark has responded to America's threats by sending more troops to Greenland.

About 200 Danish soldiers have landed in the towns of Nuuk and Kangerlussuaq.

Polling showed that Americans were overwhelmingly opposed to annexing Greenland.

A Reuters poll found just 17 per cent of Americans approved of his efforts to take Greenland.

Just 10 per cent approved of "using military force to obtain new territory".

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A spokesperson says the death is being treated as unexplained.

A surfer is in a critical condition after a third shark attack at a Sydney beach in just over 24 hours.

Emergency services were told the man had been bitten on his leg at Manly Beach about 6.30pm today. 

A group pulled the man from the water and onto the sand.

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A NSW Ambulance spokesperson said the victim was in a critical condition.

Multiple emergency services, including paramedics, the intensive care ambulance, a helicopter and police, are on scene responding to the incident.

It comes after a suspected bull shark bit an 11-year-old boy's surfboard on Sydney's Northern Beaches this morning and another child was mauled at a beach in the city's east yesterday.

Authorities said a shark took an estimated 15-centimetre chunk out of the boy's surfboard at the netted Dee Why Beach, near Dee Why Point, about 11.45am today.

The boy, who was helped by lifesavers, managed to walk away from the close encounter unscathed.

The NSW Department of Primary Industries and Regional Development said photo analysis of the bite mark suggested it was likely from a bull shark.

Department crews, lifesavers and the local council were responding to the incident.

Jet skis were patrolling the waters as a drone monitored the area from above.

Dee Why Beach has been closed for at least 24 hours.

All other ocean beaches on the Northern Beaches, except for Palm Beach, remained closed today due to dangerous surf conditions.

Swimmers are advised to be careful, avoid the beaches, and stay clear of low-visibility and murky water.

The incident comes just a day after another suspected bull shark mauled a 12-year-old boy about 27 kilometres away near Shark Beach in Vaucluse.

He suffered serious injuries to both legs and was pulled from the water by his friends and emergency services. 

He is fighting for his life at Sydney Children's Hospital. 

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Police have been left "traumatised" after a 19-year-old Canadian woman was found dead and surrounded by 10 dingoes on the Queensland island of K'gari this morning.

The woman told friends and colleagues at a backpackers' hostel where she worked that she was going for a swim about 5am.

Wide Bay District Inspector Paul Algie said two men driving near Orchid Beach, north of Maheno Wreck, then saw a large pack of dingoes near an object before 6.30am.

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"Upon closer inspection, they saw that it was, in fact, a female person at the scene," he told reporters this afternoon.

"It was obviously a very dramatic and horrific scene for them to uncover."

Algie confirmed the dingoes had bitten the woman's body, but could not say what the exact cause of death was. 

"We simply can't confirm whether this young lady drowned or died as a result of being attacked by dingoes," he said.

"I can confirm there was markings on her body consistent with having been touched and interfered with by the dingoes."

The woman's body was transferred to mainland Queensland this afternoon and will undergo a post-mortem examination. 

Police are working to get in contact with the woman's family in Canada. 

The woman had been working with a friend from Canada at a backpackers' on K'gari for the past six weeks.

Algie said her friend has been left "extremely traumatised". 

He added that police were also "traumatised" and that this incident would have widespread impacts on the entire community.

"They are absolutely horrified and shocked at what's occurred," he said.

"We are acutely aware of how deeply this impacts not only the community that live on K'gari, but also the many, many thousands of people that visit there each year."

READ MORE: Suspected bull shark takes 15cm chunk out of boy's surfboard day after teen mauled

Police are working with the local rangers, the Department of Environment and Science and the community to piece together what happened in the hour and a half she was gone.

K'gari locals and visitors are advised to stay away and not to interact with dingoes.

"Dingoes are wild animals, and whilst they are very culturally and significant to the local First Nations people and to the people that live on the island, they are still wild animals and need to be treated as such," Algie said. 

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The father of brave cancer fighter Tyler Fishlock has been taken to hospital after he was attacked by a fox on his property north of Melbourne.

Paramedics rushed to a homestead in Romsey, 60 kilometres north of Melbourne in the Macedon Ranges, about 6am after reports of an "animal related incident".

Brad Fishlock, 51, had come to the aid of one of his baby alpacas as it was being attacked by a fox.

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The fox then attacked Mr Fishlock, sinking its teeth into the inside of his thigh.

Advanced life support paramedics treated him for lower body injuries and he was taken to Northern Hospital in a stable condition.

He underwent emrgency surgery on a deep wound on his leg this afternoon.

Paramedics who attended the scene at the time that he was lucky not to have severed an artery.

Exotic wildlife veterinarian Dr Nicole Su said attacks on humans by foxes were "really out of the ordinary".

"Unfortunately we are seeing [foxes] encroaching onto more and more urban areas and we're having more sightings as well, and what we are seeing is they are getting bolder," she said.

"This is the first time I've heard of such a bad attack on a person, but I have heard of chickens snatched out of their coops, rabbits snatched out of their enclosures."

She warned anyone who encounters aggressive behaviour from the animals to report it to their local council.

"We are really careful to warn pet owners that this is a really big risk, even if you're living in the inner city of Melbourne, we still do hear it happening with these guys," she said.

"If they are, let's say, coming into your backyard, or if you've got pets that you're worried about, lights and noises, those are gonna be the best things to scare them away."

9News met the Fishlock family in 2006 when Tyler Fishlock lost his sight in both of his eyes to cancer before his fourth birthday.

Tyler went on to face another two cancer battles.

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The two groups then embarked on a car chase during which more shots were fired.

Parts of outback Western Australia could hit 50 degrees this week, with Perth in line for temperatures close to 40 degrees.

The sweltering heatwave will hit the Pilbara region, one of the hottest parts of the nation.

Temperatures will hit the high 40s and could even hit 50 degrees, according to Weatherzone.

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Forecasters say a "battle" between sea and land breezes could nudge the temperatures up.

"Australia has not seen a 50-degree day since 2022," Weatherzone said.

"The hottest recorded temperature to date this year in Australia was 49°C at Onslow on January 7. 

"On January 13, 2022, the coastal WA town of Onslow (in the Pilbara) reached 50.7 degrees at 2:26pm, which equalled Australia's all-time high temperature record (jointly held by Oodnadatta, SA)."

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Perth is forecast for 39 degrees on Tuesday, 38 degrees on Wednesday and 37 on Thursday.

It will cool off to around 30 degrees towards the weekend.

Sydney is recovering from extreme weather over the weekend which caused floods, landslides and flash flooding.

Experts say the dangerous wild weather was a 'one in 500 year event'.

One woman was killed when a tree branch fell and hit her car in the Southern Highlands.

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Emergency services were called to Hāhei Beach at 3.23pm this afternoon.

Adam Hubac hit a bank and flipped his car, then told police his partner had been driving.

Lifesavers have issued a renewed safety reminder after three people were seriously injured in separate cliff falls across Victoria since Friday.

A man in his 20s was winched from The Pillars in Mount Martha after a fall around 5.15pm yesterday.

Paramedics treated him at the scene for serious injuries and he was airlifted to the Royal Melbourne Hospital last night.

READ MORE: Boy fighting for life after attack by 'large' shark at Sydney Harbour beach

Just a few hours later, around 8.30pm, high-angle rescue specialists rescued a teenager after he plummeted 40 metres from a cliff edge at Half Moon Bay in Black Rock.

He was extricated from the cliff face and lowered onto the beach, where an ambulance transported him to The Alfred hospital in a stable condition.

On Friday, emergency services were called to Beaumaris, next to Black Rock, around 1.15pm after a woman fell from a cliff.

The woman, aged in her 30s, was rescued by firefighters and rushed to The Alfred in a critical condition.

The rescues come as Victorians continue to flock to beaches, sparking a renewed safety message from Life Saving Victoria.

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"It can be inviting to go to these secluded locations, but we do know that this is where people are most often getting into danger," Life Saving Victoria's Dr Bernadette Matthews said.

"Tragically we have found that this has resulted in deaths that have occurred and also tragic injuries as well, spinal injuries that really cause that long-term impact for people."

Matthews urged beachgoers to only visit water areas that were patrolled by lifesavers.

"We know that with this warmer weather and over the summer period, people are really looking at those different locations ot go and recreate around," she said.

"It can be really enticing to follow that latest social media trend, but really that is not worth the cost of a life."

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