SALEM TWP., Mercer Co., Pa. - State police say both drivers of two dirt bikes were killed in a head-on traffic crash in Mercer County shortly before 2 a.m. Sunday.

According to police, 22-year-old Garrett Arnold of Greenville was driving a Honda dirt bike along County Line Road just west of Methodist Road when he collided with another Honda dirt bike coming from the opposite direction.

Both Arnold and the other driver, Gage Shook, 22, of Hadley, were thrown from their bikes and pronounced dead at the scene.

Neither of the men was wearing a helmet, according to police.

Police are still investigating.