Prime minister Boris Johnson will remain in hospital over night.
He is currently in St Thomas' Hospital where he was put in intensive care as a precaution.
A Downing Street spokesperson said: “The Prime Minister’s condition is stable and he remains in intensive care for close monitoring. He is in good spirits.”
No further updates on his condition are expected until Wednesday.
Foreign secretary Dominic Raab has taken over Mr Johnson's duties while he is absent, with Mr Raab leading today's Downing Street briefing.
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