Boris Johnson has pulled out of a planned visit to Lancashire this morning “due to a family member testing positive for coronavirus”, Downing Street said.
He was meant to be visiting a vaccination centre as part of the ongoing campaign encouraging Britons to get their booster jabs.
While Mr Johnson is not legally obliged to self-isolate because he is fully vaccinated, guidance states he should still limit his social contact with others for a 10-day period.
It comes as the Tories are at war after Jacob Rees-Mogg branded the leader of the Scottish Conservatives “lightweight” over his calls for the PM to resign.
The leader of the Commons made a series of scathing comments about Douglas Ross during interview appearances last night.
Mr Ross had labelled the Prime Minister’s position “untenable” after Mr Johnson admitted he had briefly attended a party in the garden of Downing Street on May 20, 2020, claiming he was under the impression it was a “work event”.
Speaking to Newsnight, Mr Rees-Mogg said Mr Ross “has always been quite a lightweight figure”.
In separate remarks made on LBC, he said: “I don’t think it’s a surprise that Douglas Ross takes this view… I don’t think Douglas Ross is a big figure, he’s been constantly in opposition to the Prime Minister, [and] he is not somebody you’d ever expect to say helpful things about the Prime Minister.”
A further 20 Scottish Conservative MSPs have since gone on the record in support of their leader’s calls for Mr Johnson to resign his position.
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