Two drivers killed in a fiery head-on collision on a suburban Philadelphia highway

Authorities have identified two drivers killed in a fiery head-on collision on a suburban Philadelphia highway about 7:20 a.m. Friday.

Buckingham police say the victims were 30-year-old Nicole Bereshny-Ott, of Hatfield, and 50-year-old Yan Zou, of Warwick.

Chief of police Steven Daniels said one car crossed the center line and collided with another, killing both drivers, but police have yet to say why that happened or which vehicle left its lane of travel on Route 202 in Bucks County.

Police were also trying to determine whether any road hazards led to the crash.