BEAVER (KDKA) — State police are investigating after three vehicles were hit with rocks thrown or dropped onto Interstate 376 in Brighton Township.

Troopers say two trucks from Gordon Food Service were hit with rocks on the I-376 East just before 1 a.m. Monday. Neither operator was hurt.

Less than an hour later, a large chunk of limestone was hurled at the vehicle of Frank and Debra Boyer as they traveled down the I-376 West.

The rock went through the windshield. Fortunately neither occupants was injured.

Join The Conversation On The KDKA Facebook Page
Stay Up To Date, Follow KDKA On Twitter

This is a developing story, stay with KDKA and for more information.