State police at Schuylkill Haven are investigating three acts of criminal mischief at Schuylkill County locations.

Troopers said unknown criminals spray-painted walls with red and yellow paint at the American Legion building located at 2 Clarks Valley Road, in Porter Township. The incident occurred sometime between May 14-16.Troopers said unknown criminals smashed a six-foot by five-foot, nine-inch plate glass window at the Carpet Man store, located at 1150 SR61 South, in North Manheim Township. The incident occurred sometime overnight of May 16-17.The third incident was reported by Diane J. Squyres, 52, of 116 Maple Blvd., in Deer Lake. She reported someone used a blunt force type instrument to damage the driver's side door on her 1997 Oldsmobile Achieva while it was parked in the driveway of her residence. Damages were estimated at $300.The incident occurred sometime between 2 p.m. Saturday, May 19, and 7 p.m. on Sunday.