Lambton OPP say a 27-year-old Sarnia man is the victim of single vehicle fatal accident west of Camlachie just after midnight this morning.
Police say a Hyundai was being driven Travis Sitter north on Lakeshore Road between Fleming Road and Egrement Road when for an unknown reason it left the roadway and rolled into a ditch.
Sitter, who was not wearing a seat belt, t was ejected from the car and was pronounced dead at the scene.
A post mortem will take place later this afternoon at Bluewater Health in Sarnia.
OPP Technical Traffic Collision Investigators and OPP Forensic Identification Unit officers are on scene continuing the investigation.
Lakeshore Road will remain closed between Egremont Road and Fleming Road for several more hours while the investigation is conducted.
Police are also asking potential witnesses to call the Petrolia OPP detachment at 1-888-310-1122 or 519-882-1011.