The accident occurred about 2:30 p.m. Friday on U.S. Highway 24-40 near Hemphill Road.

Gary H. Ohler, 66, was driving north on U.S. 24-40 when Ohler experienced a medical condition and lost control of a 1999 Ford Ranger, according to Kansas Highway Patrol reports.

The truck went into the north ditch and rolled, reports said.

He was taken to Kansas University Hospital with injuries. He was in serious condition, a hospital official there said Monday.

It was unknown whether Ohler was wearing a seat belt, reports said.