President Biden tripped and fell after delivering a speech and handing out diplomas to graduates of the Air Force Academy in Colorado Springs on Thursday. Mr. Biden, who is 80 years old, was helped up and appeared to recover quickly.

Mr. Biden’s fall was captured on video and spread on social media. He appears to trip, fall to his knees and catch himself with his hands on the floor of the riser. He was helped up by several people and walked back to his seat.

Mr. Biden had delivered an energetic speech to the Air Force graduates before helping to hand out the diplomas. He fell after he distributed the final diploma and was headed back to his seat.

“He’s fine,” Ben LaBolt, the White House communications director, said in a tweet Thursday afternoon. “There was a sandbag on stage while he was shaking hands.”

This is a developing story. Check back for updates.