Journalist Robert Peston appeared to swear as the Government’s daily coronavirus briefing was broadcast live to the nation.
Mr Peston was heard muttering what sounded like "oh s***" during a video phone in session with Chancellor of the Exchequer Rishi Sunak on Thursday.
The ITV political editor seemed to struggle with technical problems as he dialled in remotely to ask questions about coronavirus packages for the UK's self-employed workers.
He mentioned that his connection to the briefing did not seem to be stable and before apparently swearing when Mr Sunak called on him to ask his question.
Afterwards, Peston retweeted a clip of the moment, and said: “Just to clear up any misunderstanding, screen froze at precisely the moment chancellor turned to me!”
The daily briefings, often led by the Prime Minister and broadcast on television, were initially held in a room full of journalists in Downing Street, but reporters now dial in and appear on a screen asking questions remotely.