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ST. CLAIR TOWNSHIP (KDKA) — One person was killed in a one-car crash in St. Clair Township late Saturday afternoon.

The crash happened in the 5700 block of Route 711 just before 7 p.m.

According to emergency dispatchers, a car was found off the road, crashed into a tree. The driver was killed in the crash.

The Westmoreland County coroner’s office identified the victim as 27-year-old Sean Rummel, of Bolivar Borough.

According to the coroner’s office, Rummel was not wearing a seat belt at the time of the crash, and his car did not have airbags.

While an ambulance was on the scene, a vehicle crashed into it from behind then sped off. No one in the ambulance was hurt.

St. Clair Township Police and Pennsylvania State Police are investigating.

As of 9 p.m., that section of Route 711 was closed in both directions.