Joe Biden appears to snap at staffers during a press conference

Joe Biden appeared to lose his temper on stage when he did not know which world leader he was supposed to be introducing.

The US president was hosting a press conference with world leaders on Saturday as part of a two-day summit of the Quad alliance.

But when he was meant to introduce Indian Prime Minister Narendra Modi, Mr Biden appeared to snap at his staffers and demanded to know "who's next?".