Watch: Joe Biden falls during graduation ceremony

Joe Biden tripped and fell on stage while giving out diplomas at a military graduation ceremony.

It was the latest in a string of tumbles the 80-year-old president has had.

He was at the US Air Force Academy in Colorado when the incident happened.

Mr Biden shook hands with the final graduate and then appeared to look for how to get off the stage.

He then stumbled and fell forward, putting his hands out to stop himself, and ended up on the floor.

Mr Biden then sat on his side and appeared to struggle to get up.

He was helped to his feet by three men including a Secret Service agent.

Follow for more updates.