The operator of a motorcycle was transported by Crescent Rescue to the UNMC in Omaha, Sunday evening, after the cycle left I-29 northbound at Exit 61-A, and for reasons unknown, went out of control. The Iowa State Patrol reports 50-year old Billy Hannan, of Council Bluffs, who was not wearing a helmet, suffered critical injuries.

The accident happened at around 6:50-p.m.