A central Iowa man is dead following the crash of a semi tractor-trailer on Interstate 80 this (Wednesday) morning, in Adair County. The Iowa State Patrol says 62-year old Michael Byers, of Des Moines, died after he was flown from the scene of the crash of Methodist Hospital in Des Moines.

Authorities say Byers was westbound on I-80 at around 6:45-a.m., when the 2018 Freightliner semi he was driving left the road at the Stuart exit and entered the north ditch before it rolled over. Byers, who was not wearing a seat belt, was ejected during the crash.

The semi’s tanker trailer contained hazardous materials. HAZ MAT crews were called to unload it. The accident remains under investigation. Several agencies assisted the Patrol at the accident scene.