During the wedding procession, one of the horses threw its rider off and went rogue. Thankfully, one of the guardsmen was able to take the reins and pull it to the side as William and Kate's carriage went by. However, the horse eventually broke free again and galloped past the royal carriage into the Horse Guards building.
"The horse got upset by the crowds, his head went up and he jolted the rider off," an onlooker told The Telegraph. "Another rider grabbed the horse by the reins and he was telling the guy who had fallen off to come to the side and remount but it was difficult for him to control. The horse was trying to follow all the others, but the soldier was trying to herd it to the side of the barrier and it was so strong."
The rider didn't suffer any injuries.