A man suffered serious injuries after a bull bison charged at him and launched him several feet into the air at Yellowstone National Park.
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The attack happened on Friday evening at the Bridge Bay Campground, south of Fishing Bridge.
Witnesses said the victim was thrown around eight feet into the air during the terrifying encounter.
Yellowstone Bison Attack Caught on Camera
Professional photographer Mike MacLeod, of Bozeman, Montana, witnessed the dramatic incident unfold.
He said the man had been walking with his grandson when the bison became increasingly agitated.
Footage captured before the attack showed the animal rolling on the ground while the pair took photographs from a distance.
Moments later, the bison suddenly charged toward the man and his grandson, who ran toward a nearby area with trees in an attempt to escape.
As the animal rammed into nearby vegetation, the man sprinted away before the bison caught up to him and flipped him high into the air.
When he hit the ground, witnesses immediately realized the severity of the incident.
Witnesses Rush to Help Injured Man
MacLeod said the same bison had charged at several children earlier, although they managed to scatter safely.
As the animal continued running through the campground, campers shouted warnings to alert others to the danger.
"They weren't even in that camping loop," McLeod told Cowboy State Daily. "They were walking along the road, quite a ways away from the bison, and it started running at them."
A white pickup truck then entered the area, which MacLeod said appeared to agitate the bison even further.
"The bison hooked him with his left horn on his hip and tossed him in the air," McLeod added. "He made a perfect flip and landed on his side. The bison was at least 6 feet tall, and (the victim) was several feet above him."
The bison remained standing over the injured man, leaving onlookers fearing it would attack again.
MacLeod and several others ran toward the animal to drive it away, allowing the victim to receive medical attention.
Yellowstone EMS quickly arrived to treat the man at the scene.
Although witnesses reported seeing no obvious external injuries or blood, the victim's grandson later said his grandfather had "some pretty significant injuries."
Officials have not yet released an update on the man's condition.
