Boris Johnson has been admitted to hospital for what No 10 said was a minor and routine operation on his sinuses.
The prime minister was put under general anaesthetic and is now resting, with Dominic Raab, as deputy prime minister, put in charge of taking any significant decisions while he recovers.
Johnson’s spokesperson said whether he would return to work on Tuesday depended on “how he feels” but he was still expected to attend the Commonwealth heads of government meeting in Rwanda later this week.
No 10 said the operation on Monday was a success. Johnson had been driven to hospital and the operation had been scheduled “for a while”.
The procedure was conducted on the NHS and Johnson was “very briefly” under anaesthetic, the spokesperson added.