Newspaper headlines: 'PM allies rage at Penny' and 'Dark ages dentistry'

Yulia Navalnaya had backed calls for anti-Putin voters to turn up at polling stations at midday

A number of the front pages continue to focus on rumours at Westminster about a challenge to the prime minister's leadership from within the Conservative Party.

The Daily Telegraph reports Rishi Sunak is urging MPs to "stick with him" and that he's issued a rallying cry to backbenchers telling them "the economy is turning a corner" - and that 2024 will be the year the UK "bounces back". The paper says Mr Sunak was forced to speak out after days of speculation that right-wing Conservatives are lining up the Commons leader, Penny Mordaunt, to replace him.

Mr Sunak's allies are "furious" Penny Mordaunt has failed to distance herself from recent reports she's being lined up as a "unity candidate", according to the Daily Mail.

Cabinet minister Esther McVey is quoted in the Daily Express as saying some colleagues are putting "leadership ambitions" ahead of the party's interests, adding that plotting to topple the prime minister is "self-indulgence".

The front page of the Times carries a photograph of the widow of the Russian opposition leader - Alexei Navalny - at a protest in Germany against the re-election of Vladimir Putin as Russian president. The paper reports Yulia Navalnaya defaced her own ballot paper - adding in her late husband's name.

In other news, the NHS Ombudsman - Rob Behrens - has told the Guardian hospitals are burying evidence about poor care in a "cover-up culture" that leads to avoidable deaths and families being denied the truth about their loved ones.

"Dark Ages dentistry" is the headline in the Daily Mirror - which reports there will be a protest at Parliament today about the crisis in the sector which it says has left patients taking out their own teeth with pliers or screwdrivers. The paper says more than 200,000 people have signed its petition for better dental care - sharing their horror stories from across the country.

The front page of the i paper reveals that Fujitsu - the IT company at the centre of the Post Office Horizon scandal - is still managing a "highly classified" British military computer system despite having lost the contract to do so in 2022. The paper says it is because of delays in vetting replacement contractors.

Finally, the Sun's front page reports the Princess of Wales was spotted out and about at a farm shop in Windsor over the weekend, amid what it describes as "wild speculation" about her health on social media.

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