Attendees of a Texas Tech fraternity party were arrested in Palo Duro State Park over the weekend.

KAMC news reports four people from the Texas Tech Chapter of Beta Theta Pi were arrested on charges ranging from possession of marijuana,  possession of a controlled substance and underage drinking.

Palo Duro State Park police records also show the group entered the park without reservations, and several did not pay the entry fee.

The fraternity chapter told KAMC News: "We are aware that an incident occurred and are fully cooperating with police, university officials and our General Fraternity to determine the facts and advance any necessary investigations."

A park ranger said all charges are still pending, and Palo Duro State Park Police are working with Texas Tech University on the less severe cases.