(KNZA-A Huron man was seriously injured Wednesday evening after his motorcycle crashed on an Atchison County highway.

According to the Kansas Highway Patrol, 50-year-old Chad Morrison was southbound on U.S. 59 Highway, about 3 miles southwest of Atchison, when his Harley Davidson motorcycle left the roadway for an unknown reason and went into the west ditch.

Morrison, who was not wearing a helmet, was thrown from the bike.

He was taken to the University of Kansas Hospital, in Kansas City, with suspected serious injuries.

The crash was reported shortly after 8:00 Wednesday evening.