LEBANON – An early morning car crash Sunday left two passengers hospitalized and rescue crews searching for the driver and another passenger, both of whom apparently fled the scene.

The single-vehicle accident occurred around 2:20 a.m. on a sharp curve near 135 Prospect Hill Road. Authorities said the Ford Focus was traveling east when it left the road, struck a boulder and landed on a nearby lawn.

Rescuers arrived to find a man and a woman in the road. Both were unconscious, and the car was totaled.

The man was taken to Frisbie Memorial Hospital in Rochester, N.H. The woman was taken by ambulance to Milton Elementary School, then by helicopter to Maine Medical Center in Portland.

Jason Cole, assistant chief of Lebanon Rescue, said “a witness had seen at least one other (person) leave the scene before we (arrived).”

Cole said the hospitalized passengers — both 22-year-old residents of Lebanon — told authorities that four people were in the car when it crashed.

The York County Sheriff’s Department is investigating.