The State College Police Department is offering a monetary reward for information about an assault of a police officer outside the Den early Sunday morning.

Police are looking for information that could lead to the arrest and conviction of a suspect who attacked a uniformed State College Police Officer from behind while he was attempting to arrest another individual for assaulting another person.

The officer responded to a fight on the 300 block of East Calder Way at 1:45 a.m. Sunday outside the Lion’s Den. While “struggling with an individual” the police officer was attacked from behind and punched in the face, according to a release from the police department.

Police say there was a large group around the incident and several people were recording on their cell phones. The department is requesting anyone with video or information to contact the police at (814) 234-7150, by email, or by submitting an anonymous tip.