NASCAR driver Jason Leffler died from a blunt-force neck injury, a spokesperson for the Delaware (Pa.) County Medical Examiner's office told SB Nation Friday.
Leffler, 37, died Wednesday night in an accident at Bridgeport Speedway (N.J.) where he was competing in the 410 Sprint Car heat race. He was pronounced dead in the Crozer Chester Medical Center (Pa.) emergency room at 9:02 p.m. ET, and an autopsy was performed Thursday to determine the cause of death.
The New Jersey State Police is continuing its investigation of the accident, according to Sgt. Adam Grossman, a spokesman for the NJSP. There is no timetable on when the investigation will conclude, though it is expected to be next week.
Bridgeport is a 5/8-mile high-banked dirt track located about 15 miles outside of Philadelphia. The track, like many short tracks throughout the country, did not have SAFER barriers installed on the walls surrounding the track.