President Joe Biden fell on stage at the Air Force Academy graduation on Thursday after handing out the last diploma to cadets, according to video and reporters at the scene.

“He’s fine. There was a sandbag on stage while he was shaking hands,” White House Communications Director Ben LaBolt wrote on Twitter, in response to video of the fall.

Biden appeared to trip, and he was on the ground for just a couple of seconds as Air Force officials helped him up.

Biden, 80, is the oldest person to serve as president in American history. His chief reelection rival, former President Donald Trump, would also become an octogenarian in office if elected in to another four-year term in 2024.