A letter delivered to the Metropolitan Police and later passed on to the Duchess of Sussex detailing allegations about her father Thomas Markle feature on many of the front pages. "Cops didn't share letter" writes the Sunday Mirror, explaining the Met "did not pass on allegations about Meghan's dad to other police forces". It comes after "Meghan revealed its existence after fresh allegations her father had child abuse images," according to the paper. Thomas Markle strenuously denies the allegations.

Sources close to the duchess say she is "upset" about the "failure of the Met to act", the Sunday Telegraph writes, adding Scotland Yard is "now considering whether to refer itself to the Independent Office for Police Conduct". Elsewhere, Defence Secretary Wes Streeting "says Britain must be ready for war in 1,000 days", the paper's headline reports, "as Russia continues its hybrid warfare against Nato".

The Sunday Times leads with Prime Minister Andy Burnham's latest remarks, summarising that he is "open to adopting EU free movement". It comes as "PM calls for honest conversation, saying pre-Brexit migration not 'as difficult' as now", according to the paper. Coverage of the French protests continue on the front page, where a large rally in Marseille is pictured under the headline "France on the March".

The Sunday People carries a pre-Budget exclusive that the government is expected to announce a "boost for new social housing" in England, the paper says. "Extra £1bn for homes" reads the paper's headline.

The Sunday Express leads with remarks from Conservatives urging Prime Minister Andy Burnham to "come clean" on any mooted plans to lift the pension age to 68. It quotes campaigners who believe it would affect some six million people and bring hardship to those unable to keep working.

The Observer carries an interview with Microsoft co-founder Bill Gates, who describes AI as an "evolutionary event". "'Like monkeys to humans', people will no longer be the most intelligent things on the planet," is the tech tycoon's verdict splashed on the front page.

Finally, an apparent resemblance between the late US pop icon Prince and the Prince of Wales fills the front page of the Daily Star on Sunday. "Purple Reign" quips the paper, as Prince William "claims he is often not recognised" and one time "a bloke thought he was pint-sized pop legend Prince" and wanted him to sign a copy of his record "Purple Rain". The comments came as the prince made an appearance on the BBC's Graham Norton Show.

A number of the front pages report what they believe will be in Wednesday's Budget. The Sunday Telegraph says the chancellor is considering a carbon charge on imported fuel., external The paper calls it a "green tax" and claims the move could drive up prices at the pumps. The Sunday Times says there'll be billions of pounds of new funding for defence, external - and two government investment funds will also receive money, which will be invested in UK defence firms.

The Sunday Mirror welcomes news of £1bn being committed to council and affordable, external housing, equivalent to building 10,000 thousand homes. It says the government also plans to help more councils borrow to construct homes by extending preferential rates. The paper's editorial says Britain will be a happier place when everyone has a secure roof over their heads.

The Sunday Express features a call for the government to reveal whether or not it intends to bring forward the planned rise, external in the state pension age to 68. The paper says there are concerns it could be implemented in 2037, and not the mid-2040s - as originally planned.

In an interview with the Observer, the co-founder of Microsoft, Bill Gates, calls the advent of artificial intelligence an "evolutionary event", external. He says people will no longer be the most intelligent things on the planet. He says governments will need to find new sources of income to fund the needs of people put out of work. Gates also says that billionaires should pay more tax, claiming he would have paid more than double the amount he has so far in his life.

The Sun on Sunday has been told, by a friend of the Duchess of Sussex,, external that she is "concerned" that the Met police did not act on a letter accusing her estranged father Thomas Markle, of child sexual abuse. "They had the opportunity to pass it on to other relevant law enforcement authorities but chose not to", the friend said. In an interview with the Mail on Sunday, Markle denies all of the allegations, external made against him. Markle, who had a leg amputated last year, tells the paper: "I am not well enough to go to the Philippines but I will speak to anyone who wants to talk to me. I have nothing to hide."

Wind-up radios are selling out, after the government's emergency stockpiling announcement, according to the Sunday Telegraph. It says sales increased fivefold at some retailers, external. An industry source revealed that some shops were surprised by the announcement that people should make sure they have three days' worth of food and water - just a day after a worldwide scramble to fix vulnerabilities in the software which underpins the internet. One business owner has told the paper: "I thought my phone was glitching or had been hacked when I saw the number of orders coming in."

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