Disturbing video shows a police officer in Washington state kicking a teen in the back after he had been pepper sprayed.

The video recorded by a bystander at the Central Washington State Fair in Yakima on Sunday night shows cops trying to break up a brawl that seemed to involve about 15 people. One teen can be seen covering his eyes before an officer kicks him in the back, knocking him to the ground.

The officer, identified by the Yakima Herald as Ian Cole, has been placed on desk duty.

“Maintaining public trust is one of our highest priorities, and in doing so, investigators will be collecting all available evidence as it pertains to a use of force review,” interim Yakima Police Chief Gary Jones said in a statement on Monday. “Police officers are often faced with difficult situations that require immediate assessment of circumstances in order to protect the community and themselves.”