U.S. President Joe Biden fell indirectly on Thursday during a military ceremony in Colorado Springs, in the west of the United States.

Biden, whose age and fitness are a constant subject of attack by some of his political opponents, then rose to his feet with the help of a soldier at his side. The Democrat, who had just handed out diplomas to students at the Colorado Air Force Academy, fell forward, receiving himself on his knees and hands, after apparently tripping over a black bag.