Foreign Secretary Liz Truss has tested positive for Covid - moments after she joined the Prime Minister to garner support from Tories at the 1922 Committee meeting.
Ms Truss confirmed she will be self-isolating but will continue to work from home.
She was spotted around Parliament tonight not wearing a face covering and was present during Boris Johnson's statement to the Commons following the release of Sue Gray's partial report.
The Prime Minister had scrapped all Covid rules last week, so they are no longer mandatory.
But the Government does recommend people wear them in crowded and enclosed spaces.
Her positive Covid test also comes hours before she was set to fly to Ukraine tomorrow with the embattled Prime Minister for crunch talks.
She was headed with Mr Johnson to meet Ukrainian President Zelenskyy.
Ms Truss had jus unveiled plans to beef-up sanctions on Russians should the Kremlin invade.
New legislation will be the "toughest sanction regime against Russia we have ever had", she told MPs.
"It will go further than ever before,” she told the Commons. “Until now the UK has only been able to sanction those linked to de-stabilisation of the Ukraine.
“This new legislation will give us the power to sanction a broader range of individuals and businesses."
"Golden" UK visas for Russian millionaires with links to Putin’s reigme will be reviewed before April 5, she said.
Measures include the power to freeze assets of individuals linked to the Russian state and deny them entry to Britain.
