Broadcaster Andrew Marr is recovering in hospital after suffering a stroke, according to the BBC.
The journalist and television presenter was taken ill yesterday, the corporation said.
The BBC said in a statement: "Andrew Marr was taken ill yesterday and taken to hospital. The hospital confirmed he has had a stroke.
"His doctors say he is responding to treatment. His family have asked for their privacy to be respected as he recovers."
The statement continued: "We will continue to broadcast The Andrew Marr Show and Radio 4's Start The Week with guest presenters in his absence.
"His colleagues and the whole BBC wish him a speedy recovery."
Mr Marr, 53, is a former BBC political editor.
He began his career as a newspaper reporter, becoming the editor of the Independent before turning to television.
He has also presented a number of history programmes along with his politics show and has had five books published.
The BBC said that James Landale will present The Andrew Marr Show this Sunday.