Screenshot: Connecticut State Police

On Thursday, the Associated Press reported that a former substitute teacher at Montville High School in Connecticut was arrested and charged with running a “fight club” for students.

The teacher—23-year-old Ryan Fish—was, according to local news source The Day, charged with two counts of risk of injury to a minor, second-degree breach of peace, and four counts of second-degree reckless endangerment.

According to the arrest warrant affidavit, Fish was fired on October 10, the very day that the school’s assistant principal, Tatiana Patten, learned of the alleged fights. However, school resource officer Karen Moorehead told The Day that local authorities didn’t know anything about the alleged incidents until December, when a social worker told police that a teenager had accused fellow Montville students of robbing and beating him.

The affidavit also contends that Patten told police during a meeting in December that she suspected the existence of a classroom “fight club” and showed police a cellphone video of one of the fights. Patten, who has reportedly been on leave since January (it’s not clear whether this is in connection to the allegations against Fish), claimed that there were multiple videos in this vein, according to The Day.