One person is trapped and several others injured during a multi-vehicle accident on Interstate 80 westbound, about two-miles east of Shelby in Pottawattamie County. Five semi’s and six cars are involved. The wreck happened at the 36-mile marker. All lanes are blocked on I-80 westbound at that location.  All lanes were also reported blocked on I-80 eastbound opposite the crash scene. Traffic was being rerouted off the interstate at the nearest exits. Visibility was reported to be down to 100 yards at 2-p.m. (updated 2:03-p.m.)