The Cambridge Post of the Highway Patrol is investigating a fatal accident. It happened around 2:00 Friday afternoon on Byesville Road in Guernsey County. The Highway Patrol says a 30-year-old man was killed in the accident. Troopers say the car rolled over several times and ejected the driver, who was not identified pending notification of his family. Troopers also said the driver was not wearing his seat belt. The accident remains under investigation.