(KLZA)-- A Hampton, Nebraska man suffered serious injuries Tuesday night when the semi-truck he was driving south on Interstate 29 traveled off the west side of the road and became airborne before coming to rest on its wheels.

The Missouri Highway Patrol reports 49-year-old Charles Janzen fell asleep before the semi left the road approximately five miles north of Rock Port. The wreck occurred shortly before 11:00 p.m.

Janzen was transported to the Fairfax, Missouri Hospital by the Atchison-Holt EMS for treatment of his injuries. Janzen was not wearing a safety device at the time of the wreck.

The semi was totaled in the wreck.