State police at Fogelsville are investigating the theft of 120, eight-foot load beams, and 800, 42-inch pallet support bars, from the property of Lehigh Group, located at 2834 Schoeneck Rd., in Lower Macungie Township. The beams are valued at $1,800 and the bars at $1,600. The theft occurred sometime between Nov. 12 and 15.