A tourist was seriously injured after a bull bison charged at him and tossed him about eight feet into the air at Yellowstone National Park in the US on Friday evening. The incident took place at the Bridge Bay Campground, located south of Fishing Bridge, where the animal had reportedly been behaving aggressively and charging at both people and vehicles.

The man was walking with his young grandson when the attack unfolded. According to Mike MacLeod, a professional photographer from Bozeman, Montana, the pair had been keeping a safe distance, around 100 yards, from the bison. MacLeod, who witnessed the incident, said the animal had already charged at a group of children who were taking photographs. The children managed to move out of its path, while campers began warning others as the bison ran through the area.