(CNN)British Prime Minister Boris Johnson has been admitted to the hospital for tests, Downing Street said Sunday, after days of coronavirus symptoms.

“On the advice of his doctor, the Prime Minister has tonight been admitted to hospital for tests,” the Prime Minister’s Office said in a statement, adding that the tests were part of a “precautionary step” due to Johnson’s lingering symptoms.
He is expected to stay in the hospital overnight, a Downing Street source told CNN.