U.K. Prime Minister Boris Johnson has been taken to intensive care.
The news was announced Monday, just a day after he was taken to hospital after 10 days of suffering from coronavirus symptoms and putting himself in self-isolation.
"Since Sunday evening, the prime minister has been under the care of doctors at St Thomas’ Hospital, in London, after being admitted with persistent symptoms of coronavirus," said a Downing Street spokesperson.
"Over the course of this afternoon, the condition of the prime minister has worsened and, on the advice of his medical team, he has been moved to the intensive care unit at the hospital."
Johnson has asked foreign secretary Dominic Raab, who is the first secretary of state, to deputise for him where necessary.
Johnson, 55, had been quarantined in his Downing St. residence since being diagnosed with COVID-19 on March 26.