State police at Frackville are investigating a criminal mischief incident at a Schuylkill County cemetery.

Troopers said unknown persons damaged the front gates at St. Joseph Cemetery, located in Brockton, Schuylkill Township.Troopers said a vehicle was used to push open the locked iron gates to the cemetery. The incident occurred sometime between June 17 and Monday, July 2.Anyone with information concerning this incident is asked to call troopers at (570) 874-5300.