LINCOLN, Neb. (AP) — A popular Nebraska football tailgating spot has permanently banned alcohol after a violent incident that ended with 13 arrests and sent a police officer to the hospital.

The Indian Center’s board of directors voted 4-3 Monday to support the ban. They will still charge $15 to access the Lincoln lot on game days. Board members say they don’t want to promote alcohol use or abuse.

The area turned chaotic in the hours before the Nebraska-Miami kickoff on Sept. 20, with fans causing thousands of dollars in damage. The officer was treated and released after being hit in the head with a full beer can.

The director of the center says it was making about $10,000 per game but expects that revenue to drop to $1,600 with the ban.