President Biden told a British reporter “you be quiet” after the journalist asked a question before a key meeting with Sir Keir Starmer.
Mr Biden and the British Prime Minister both made statements to reporters at the start of the meeting.
One Sky News reporter, James Matthews, tried to ask a question about what the President thought of Putin’s threat of war.
Mr Biden snapped back: “You be quiet, I’m going to speak, OK?
“You gotta be quiet, I’m going to make a statement.”
Mr Biden and Sir Keir then made statements about the issues that would be discussed at the meeting: Ukraine and Gaza.
The Sky News reporter then asked his question again.
This time, the President replied: “I don’t think much of Vladimir Putin.”
Mr Putin said on Thursday that it would be an act of war if the West allowed Ukraine to use long-range missiles in Russia.
Sir Keir and Mr Biden had a short one to one meeting in the Oval Office before a longer meeting with aides in the Blue Room, where the confrontation with the reporter took place.
Alongside the Prime Minister was David Lammy, the Foreign Secretary.
Sir Keir’s chief of staff, Sue Gray was also there, along with Dame Karen Pierce, UK ambassador to the US.