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Many papers lead on calls for Boris Johnson to apologise for comments made about Sir Keir Starmer, after protesters targeted the Labour leader outside Parliament.

says six Conservatives were among MPs who linked the incident to the prime minister's false claim, made in the Commons last week, that the Labour leader failed to prosecute serial sex offender Jimmy Savile.

"This is why words matter... this is why truth matters," says .

A Labour source tells that Mr Johnson "and his cabinet chose to lie down with dogs, and now the whole lot of them are covered in fleas".

In an editorial, describes the protesters as "dangerous fools" who should be "taken to task for this affront to our democracy".

According to , Conservative MPs have been told they can stay away from Parliament until Thursday when the Commons begins a 10-day recess. The paper says Mr Johnson believes he will get a fresh chance to reset his premiership if he manages to avoid a confidence vote before the recess.

An MP told the paper the government's attitude had been reduced to "what do we have to do to get through to another day?"

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Writing in , the prime minister warns Russian President Vladimir Putin that he'll make a "foolish mistake" if he invades Ukraine because it only strengthen Nato, and force the West to bring about much of what he seeks to prevent.

Mr Johnson also says he is prepared to send Typhoon fighter jets to Romania and Bulgaria and warships to the Black Sea. He vows that Britain's support of Europe and Nato will remain "unconditional and immovable".

says the government is preparing to approve six North Sea gas and oil fields this year.

It says Chancellor Rishi Sunak has asked the business secretary to fast-track the licences because of concern in the Treasury about the economic impact of making the UK a net-zero carbon emitter by 2050.

A Whitehall source said North Sea resources were important - not only for jobs and tax revenue - but also for domestic energy security.

Several papers, including , highlight a study by the University of Chicago, which found that getting more sleep helps people reduce their calorie intake and lose weight.

The researchers followed 80 overweight individuals who received advice on how to improve their sleep.

By spending an extra hour in bed, they reduced calorie intake by 270 calories on average - the equivalent of three chocolate digestive biscuits.

A more radical method of losing weight features on the Telegraph's front page and in .

The papers say the NHS is to start prescribing weekly injections that suppress the appetite. Researchers say the jabs, called Wegovy, are almost as effective as weight-loss surgery.