BUTLER, Pa. — State police and federal workplace safety officials are investigating after a Pennsylvania paving worker was reportedly run over by a co-worker and killed.

Troopers say 51-year-old Donald Moyers was behind the truck when the co-worker accidentally backed over him about 7:45 a.m. Tuesday. The men were working on an intersection in Jefferson Township, Butler County.

Occupational Safety and Health Administration officials are investigating.

The men worked for Wiest Asphalt Products & Paving.

Autopsy results were not immediately available Wednesday.