Authorities in northeast Iowa say a man found dead in his truck Tuesday suffered a medical problem. The S-10 pickup was found along Highway 9 in Allamakee County.

The Iowa State Patrol says 93-year-old Lester Vernon Fish of Waukon was behind the wheel when the vehicle crashed through a fence and came to rest in a field. Fish was pronounced dead at the scene, from an undisclosed medical problem, just after 4 p.m.