A 60-year-old Georgia man is dead after tipping his semi on Interstate 80 west of Cheyenne.

The Wyoming Highway Patrol says the accident happened around 5:23 a.m. Sunday.

The Patrol says Charles Mosteller was headed west on I-80 when he failed to negotiate a right-hand curve near milepost 337, went into the median and tipped his rig onto the driver's side.

Mosteller was wearing his seat belt, but died from his injuries.

The Patrol says it's possible Mosteller fell asleep or had a medical condition which led to the crash.