Boris Johnson says he is in "good spirits" after spending the night in hospital with coronavirus.
The PM was taken to St Thomas' Hospital in London on Sunday evening with "persistent symptoms" - including a temperature and a cough - for routine tests.
He remains in charge of government, although Foreign Secretary Dominic Raab chaired Monday's coronavirus meeting.
Mr Johnson, 55, tested positive for coronavirus 10 days ago.
In a tweet, he said he was "keeping in touch with my team as we work together to fight this virus and keep everyone safe".