Terrifying video shows the moment a Colorado deputy fights off a wild mountain lion with her bare hands.

On Wednesday afternoon a female Larimer County Sheriff’s Office deputy was attacked by a mountain lion crouched underneath a trailer in Loveland.

Officers were called to the scene around 1.50pm when the lion pounced on a civilian and a sheriff’s deputy on the 2100 block of River Rim Road.

Video from the confrontation shows the deputy on the ground and the lion aggressively jumps on top of her, leading officers to shoot at the animal.