In a post on Truth Social, he said the US "will immediately begin the process of developing a large military presence in the appropriate part of Greenland".

He added: "This is a dream come true for the United States of America, one that is very important, historic, and special."

Explained: What we know about the deal

In a statement, Prime Minister Mette Frederiksen said both Denmark and Greenland expect to sign an agreement with the US next week to strengthen security in the Arctic and the North Atlantic region.

Mr Trump has previously called on Denmark to sell the island to the US and repeatedly insisted that it is crucial for US security, specifically his plan to build a 'Golden Dome' shield.

The defence system would guard against missiles being fired over the Arctic region, potentially from Russia and China.

Greenland also holds rich deposits of rare earth minerals needed for telecommunications, as well as uranium, billions of untapped barrels of oil and a vast supply of natural gas that used to be inaccessible but is becoming less so.

Denmark and Greenland have both consistently asserted that the island is not for sale but Mr Trump suggested in his social media post that an understanding may have been reached.

He went on: "We look forward to working with the wonderful people of Denmark and Greenland toward a magnificent future with respect to this large, and highly strategic, parcel of land. We will be very protective of it!"

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A NATO spokesperson on Saturday said the alliance welcomed the agreement, which would "help advance security, stability and cooperation in this ‌vital region."

Parliamentary action by the Danish and Greenland governments will be required before the deal can be enforced.

Ms Frederiksen said: "I am pleased that there is a prospect of a good agreement for Greenland, the Kingdom of Denmark and the US.

"An agreement that strengthens our common security in the Arctic and the North Atlantic area and is therefore also good for NATO and Europe.

"And an agreement that at the same time recognises the sovereignty and territorial integrity of the kingdom and the right of the Greenlandic people to self-determination."

Greenland's Prime Minister Jens-Frederik Nielsen said it would "ensure and strengthen" the security of Greenland, Denmark, the US and the Western alliance - calling it "to the benefit of us all".

US secretary of state Marco Rubio said that the deal "permanently and completely" addressed Washington's national security concerns with respect to the island.

"Greenland will forever be part of the strategic defence area of North America and exclude any adversary from it and the surrounding area," he added.

The allegations were made in the book Swan Song: Diana, My Sister, which is being serialised in the Daily Mail - and is due to be published next week.

In an excerpt from the book about the events following his sister's deadly car crash in 1997, the earl claims that the King told him "we'll forget her soon enough", which Buckingham Palace responded to with an unusually punchy public statement.

In an interview published on Friday, Earl Spencer insisted, however, that he was "telling the truth" about the phone call.

"I can tell you here and now, those are exactly the words he said," Earl Spencer told the BBC, adding he had only ever had two calls on the line with Prince Charles.

"I was hyper alert to what he was saying and those are precisely the words that he said and I promise that to you now," the earl said.

"Genuinely, that is what he said. I don't hear him saying he didn't say that."

Royals latest: Diana's brother's new claims

Earl Spencer also shared new details from the call, saying the King went "ballistic" and accused his family of lacking a sense of duty after the earl insisted Prince William and Prince Harry should not walk behind their mother's coffin during the funeral procession.

The King then "stopped", the earl added, which made him think he was going to "pull himself together and say something more appropriate".

But it was then that the King said Diana would be forgotten "soon enough", according to the earl.

Earl Spencer added: "I really was so stunned, and I just, after a stunned silence, I said, 'I cannot believe you just said that', and I hung up on him."

On Wednesday, after the first excerpts were published, the Palace said in a statement: "While we do not comment on books as a matter of principle, His Majesty is mindful that the pain of fraternal grief can cloud reason, affect judgment and colour memory in ways others do not recognise, even many years after such a loss."

Regarding the King's reaction, the earl said: "Is he furious or is he embarrassed?"

"They've sort of smudged that one, haven't they?" he said. "They've said that recollections may vary."

Asked whether he has "evidence" of the King's comments, the earl said: "I told friends and family straight away, close friends and family, about what had been said, because it was so monstrous."

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In an excerpt from the memoir published on Friday, the earl revealed he was "concerned" over the well-being of his nephew during and after Diana's funeral.

The princess's brother said he worried about the "lack of obvious care" for the then 12-year-old Prince Harry who, he said, "needed Diana's hugs... and they would forever be denied him".

Instead, the prince was "allowed to spin out of control", Earl Spencer added, writing that "a more caring hand" might have helped him cope while growing up.

"I could not get over how tiny, and slight, and bereft, Harry looked," the earl said.

"Too small to be doing this, I thought, and wondered how on earth this heartbroken child could bear the ordeal of that moment, or how he could possibly be expected to deal with the agony that the day ahead would insist upon."

Diana's brother also shared what he said was the late Queen's first reaction to Diana's traffic accident in Paris: "When the Queen had heard the first news of Diana's being in a traffic accident, she had asked, 'What is she up to now?'

"This, before the seriousness of it all became clear."

After Diana's death, Queen Elizabeth had, however, offered via her private secretary to give Diana her HRH style back, the earl adds, in a part that was reported before the publication of the full excerpt.

Sky News has asked the Palace for a response to the full excerpt.

Five days after Diana's death in Paris on 31 August 1997, the Queen paid tribute to her in a live television broadcast, saying no one who knew the princess would ever forget her.

Earl Spencer's revelations have, however, been questioned.

"Those comments just do not, and I promise you, do not add up. It absolutely does not make sense," Grant Harrold, who was Charles's butler while he was the Prince of Wales, told Sky News.

Mr Harrold said, in his opinion, the claims have "more to do with selling books".

Sky News' royal correspondent Laura Bundock said the revelations pose a greater risk to the King than Earl Spencer at a time when the Royal Family has come under increased scrutiny.

Bundock said the claims constituted "blistering broadsides" and may "reignite one of the most traumatic and damaging episodes in recent royal history".

Since Harry and his wife, Meghan, returned to the UK last month, they have been involved in a public feud with the Palace about their status. Their children have moved schools after issues were raised by their security team.

Sky News has learnt that Tata Steel approached the Department for Business, Innovation, Science and Technology (DBIST) in recent weeks to discuss a new multimillion-pound support package.

The request is in addition to a £500m grant awarded to Tata Steel in 2023 to build an electric arc furnace (EAF) at Port Talbot, one of Britain's most important manufacturing sites.

That government aid formed part of a £1.25bn investment in the site which was supposed to have the new EAF operational by early 2028 - within three years of construction getting under way.

The plan was aimed at preserving 5,000 steelmaking jobs across the UK, although 2,500 roles have already been lost as part of the transition.

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The last of Port Talbot's blast furnaces closed in 2024.

However, delays to the grid connection timetable have left Tata Steel to conclude that the new EAF will now not be up and running until late 2028 or early 2029.

The company is said to have calculated that rising costs associated with the project, as well as foregone sales caused by the delay to the EAF, would cause a significant escalation in its overall cost.

The precise sum of additional funding that Tata Steel is now seeking from Whitehall was unclear this weekend, although industry sources said it was likely to run to hundreds of millions of pounds.

Jonathan Reynolds, the business secretary, has been briefed on the approach from Tata Steel, they added.

Tata Steel has warned for years about the viability of Port Talbot, with repeated threats of closure hanging over the plant during the last decade.

The company has been hammered by a glut of cheap steel arriving in the UK, with one of its senior executives warning late last year that Britain had become "an unfairly priced dumping ground for cheap imports".

Earlier this year, it was reported that the company was considering mothballing its UK steel mills amid rising losses.

Union leaders said over the summer that Tata Steel's Llanwern plant in Newport, South Wales, was particularly at risk from larger-than-expected quotas allotted to India by the government alongside the free trade agreement struck by the two countries earlier this year.

Imports from Vietnam and South Korea have also intensified the pricing pressure on galvanised steel produced by Tata Steel.

Tata Steel has attempted to use the £1.25bn investment in Port Talbot as a move to preserve mass steel production in Britain.

When the public-private funding package was formally confirmed two years ago, T V Narendran, Tata Steel's chief executive, said: "With the UK government's critical support, this complex and ambitious transformation of Port Talbot has the potential to make the plant one of Europe's premier centres for green steelmaking.

"We now look forward to the efficient and speedy execution of the EAF project.

"We will also continue our work with the Transition Board and the UK and Welsh governments to enable this project to be a catalyst for economic regeneration and job creation in South Wales."

The prospect of more public money being used to back Tata Steel is likely to raise questions about the industrial priorities of Andy Burnham's government.

Tata Steel is part of the same Indian conglomerate as Jaguar Land Rover, which announced earlier this month that it was cutting 4,000 jobs as part of a reorganisation aimed at saving £1.7bn.

The parent company, Tata Group, is embroiled in a boardroom governance dispute which has rocked corporate India and left its subsidiaries uncertain about the group's future leadership.

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The latest talks come amid a wider crisis which has seen Britain's biggest steelmakers put on life support by the government.

British Steel, the second-biggest player in the industry, was nationalised during the summer using legislation passed by parliament after threats by the company's previous Chinese owner, Jingye Group, to close its blast furnaces at Scunthorpe.

This week, however, the government was criticised by MPs for failing to develop a "credible plan" for the company's future financial sustainability.

British Steel is costing taxpayers £1.3m a day to keep afloat.

That criticism came in the same week that Mr Reynolds said he would work towards the public acquisition of Speciality Steel UK just over a year after the country's third-biggest producer collapsed into insolvency proceedings.

Tata Steel and the Department for Business both declined to comment on the latest talks.

The North East Scotland MSP, who has been the party's finance spokesperson, defeated South Scotland MSP Joe Fagan in the contest.

Mr Marra replaces Anas Sarwar, who stood down from the top job after the party suffered its worst result in the history of devolution in May's Scottish parliament elections.

Mr Sawar quit his role in July and joined the House of Lords, becoming a trade minister in Andy Burnham's government in Westminster.

Voting in the contest opened on 28 August, with Mr Marra and Mr Fagan taking part in a series of hustings across the country in a bid to woo party members.

Mr Marra has insisted Scottish Labour is still a "significant force" in Scottish politics despite this year's election results.

The number of MSPs elected for the party has declined in every Holyrood election since devolution, falling to just 17 after May's vote. The result meant it was the joint second-largest party, tied with Reform UK.

On the question of Scottish independence, Mr Marra has said there is a "route" to a second referendum through "creating a settled will of the Scottish people".

But he said comparing Scotland to Northern Ireland - which has a legal trigger for a referendum - was "dangerous".

Earlier this month, the prime minister said a vote on Scottish independence could be held if there was a "clear consensus" north of the border for it, but a letter later sent to First Minister John Swinney said a referendum remained "off limits".

SNP leader Mr Swinney has pushed for a referendum to be held within the next five years.

This week he met the leaders of Plaid Cymru and Sinn Fein during what they described as a "landmark" summit aimed at pressuring Downing Street into holding independence referendums.

Ahead of polls closing in the leadership race on Thursday, Mr Marra said he would practice what he described as "open-door politics" both within the party and Holyrood.

In engaging with party members, Mr Marra has said he plans to hold a series of regional meetings, where he will, effectively, take his lead from those on the ground.

But he also said he would be open to working with other parties and the Scottish government.

While Mr Marra claimed he has always been willing to work with the government, he was part of the Labour group which chose to abstain on the budget vote in each of the past two years, effectively waving through the government's plans without gaining anything in return.

Also, he claimed that for both the country and the party, education has been less of a priority than it should be, as he pledged to put it "at the heart of our politics".

Google's vice president ​of security engineering, Heather Adkins, said Gemini found public information online during a standard testing evaluation and guessed credentials to access three websites ‌it thought were within the scope of its test.

Ms Adkins said: "We ensured the three entities were made aware, and we worked with our training partner on the ​changes they've now made to their testing processes. These events highlight the importance of training ⁠powerful AI models to act responsibly."

The hacks occurred in May during a test conducted by Irregular, an independent company that conducts cybersecurity evaluations.

In one of the cases, Gemini guessed passwords until it gained access to a protected system.

In the other two, it found credentials in a public repository that allowed ⁠it to then access protected systems, according ​to the Wall Street Journal, which first reported the news ​on Friday.

Irregular has disclosed similar incidents with Meta, Anthropic and OpenAI - raising questions about the safeguards needed as AI agents gain greater autonomy and access to the internet ​and computer systems.

Facebook and Instagram owner Meta said in August that one of its artificial intelligence models hacked another company after connecting to the internet.

A month prior, Anthropic - which is behind Claude - said its AI hacked three companies during cyber tests and ChatGPT owner OpenAI revealed some of the models it was testing managed to escape containment.

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The latest incident comes amid growing fears over the speed at which AI is developing - with industry figures including Elon Musk and Sam Altman among those raising concerns.

Anthropic chief executive Dario Amodei received backing from Mr Musk and Mr Altman earlier this month, after publishing a three-step plan for pacing AI development.

OpenAI boss Altman had also warned about the risks well before ​the current boom.

In a 2015 essay titled Machine Intelligence Part 1, he said the "development of superhuman machine intelligence is probably the greatest threat to the continued existence of humanity."