Boris Johnson has spent a second night in intensive care as he continues to receive treatment for coronavirus.
Mr Johnson is being kept in St Thomas’ Hospital in London “for close monitoring”, Downing Street said.
The PM is “comfortable, he’s stable, he’s in good spirits”, said health minister Edward Argar on Wednesday.
No 10 also suggested the three-week review into whether the coronavirus lockdown could be eased would not go ahead as planned on Monday.
Asked on BBC Breakfast when the measures might be lifted, Mr Argar said the scientific evidence “isn’t yet there to allow us to make us a decision”.
“We have to be over that peak before we can think about making changes,” he said, adding: “It’s too early to say when we will reach that peak.”
Foreign Secretary Dominic Raab, who is deputising for the PM, said on Tuesday he was “confident” the PM would recover from this illness, describing him as a “fighter”.