State police at Schuylkill Haven are investigating two acts of criminal mischief.

Bernard J. Bann, of 1075 Willow Drive, Orwigsburg, West Brunswick Township, reported someone threw a rock through the front window of his home sometime during the overnight hours of May 19-20. Damages were estimated at $100.Adrian L. Beck, of 6 Phaon's Rd., in Pine Grove, Wayne Township, reported someone smashed the front windshield on his 2000 Audi S4 sedan while parked in front of his residence. The incident occurred sometime beween 9 p.m. on Saturday, May 21, and 1:30 p.m. on Sunday.