Carlisle, Iowa (KCCI)  — Disturbing video shows a fight between players at Tuesday night’s Carlisle-Nevada basketball game. One student is charged with willful injury after allegedly knocking out an opposing team player. The video, which has gone viral, shows the Carlisle-Nevada basketball game was over, and the players were in the post-game handshake line when the trouble began. Instead of shaking hands, it appears Carlisle player No. 4 throws some surprise punches at a Nevada player wearing jersey No. 5.   The first punch was to the stomach. The second punch was to the jaw. The Nevada player appears to be knocked out as he fell to the floor. Several more students joined in the fight.

A police report confirms Carlisle player Carter Prenosil was arrested. He’s charged with willful injury. Court documents allege he threw an “unwarranted punch” at Nevada player Ty Dittmer’s abdomen and face. In a statement to KCCI, Carlisle Superintendent Bryce Amos said: “This is without question an unfortunate incident that is not representative of the school culture that exists in Carlisle Community School District. I want to make it clear that this type of conduct is not tolerated at Carlisle CSD”

Nevada Superintendent Dr. Steve Gray said, “It was a very unfortunate and disturbing situation. Fortunately, it sounds like our student-athlete is going to be alright. I’m very appreciative of the response of our coaches and players, as well as the Carlisle administration, for quickly de-escalating the situation.”

Some students told KCCI the two players traded insults during the game which may have led to the fight.  The Carlisle School District, the Iowa High School Athletic and Carlisle police are investigating.