Police in Chester County say the four 15-year-olds were heading west on Beaver Dam Road in Honeybrook Township at high speed when their car ran off the road shortly after 3 a.m. Friday and hit a tree and a utility pole.
Police say the youth driving the car was thrown from the vehicle and pronounced dead at the scene by the Chester County coroner's office. A girl was taken to Brandywine Hospital, where she was also pronounced dead.
A youth said to have been severely injured and another whose injuries were called serious were taken to Reading Hospital.
Police say the driver had not been using a seat belt but all three passengers were using seat belts.