Boris Johnson isolating after potential coronavirus exposure

British Prime Minister Boris Johnson said Sunday that he had been instructed to self-isolate after coming in contact with someone who had contracted COVID-19.

In a tweet, Johnson, who tested positive for the coronavirus and was hospitalized with serious symptoms earlier this year, said that he was feeling fine but would follow protocols and self-isolate in his offices at No. 10 Downing St.

“Today I was notified by NHS Test and Trace that I must self-isolate as I have been in contact with someone who tested positive for COVID-19,” he tweeted. “I have no symptoms, but am following the rules and will be working from No10 as I continue to lead the government’s pandemic response.”

Today I was notified by NHS Test and Trace that I must self-isolate as I have been in contact with someone who tested positive for COVID-19.

I have no symptoms, but am following the rules and will be working from No10 as I continue to lead the government’s pandemic response.

— Boris Johnson (@BorisJohnson) November 15, 2020

Johnson was released from the hospital in April after spending nearly a week in intensive care.

“I can’t thank them enough. I owe them my life,” he said of doctors and nurses of the National Health Service following his release.

The U.K. has seen its rate of new coronavirus infections spike in recent weeks and on Saturday reported more than 26,800 new confirmed cases of the virus.