Iolan Edward J. Danford, 59, was killed in a single-vehicle accident Tuesday morning in rural Miami County.
The Kansas Highway Patrol said Danford was southbound on U.S. 169, between Spring Hill and Paola, when the semitractor-trailer unit he was driving went off the left side the road, and across the median and northbound lanes on the four-lane highway.
The truck entered the ditch and came to rest against a tree.
Danford was declared dead at the scene.
He was not wearing a seat belt, troopers said.
