Updated

An adult and three boys returning home from a Boy Scout camping trip were killed Sunday when their vehicle ran off a rural highway, crashed into a tree and burst into flames, state police said.

The driver, 43-year-old John Oliver, and three Boy Scouts died at the scene, said state police Sgt. D.S. Carr. The driver's son, Michael Oliver, was able to get out of the car and was taken to a hospital, police said. His age and condition were not available.

Carr said the boys, who were about 12 or 13 years old, were members of Boy Scout Troop 17 in Franklin. The Scouts names weren't available.

The accident occurred around noon, police said. Another driver with the Boy Scout group looked in her rearview mirror and saw Oliver's vehicle run off "a sweeping curve" on Virginia 35 in Southampton County, Carr said.