The Iowa State Patrol has released the name of a man who died following a crash early Saturday morning, in Monona County.Officials say 59-year old Albert Butler, of Mapleton, died from his injuries at Mercy Hospital, in Sioux City. Another person in the vehicle, 44-year old Judith Krohn, also of Mapleton, was injured. She was treated at the hospital for non-life threatening injuries. Officials say they still don’t know who was driving. Alcohol is believed to have played a role in the accident, which happened at around 1-a.m. Saturday, in Mapleton.

The Patrol says a 2004 Ford F-250 pickup occupied by Butler and Krohn was traveling east on Highway 141, when it failed to negotiate a curve. The vehicle left the road and rolled into the east ditch, just east of Pecan Avenue, in Mapleton. The accident remains under investigation.