Rescue and Law Enforcement personnel remained on the scene of what appears to be a single-vehicle fatality accident on Interstate 80 westbound as of 1:45-p.m. Saturday, in Cass County (IA). (Click on images to enlarge)

Just west of the N-16 bridge on I-80 WB.

Looking west past the Olive Street bridge (N-16)

I-80 looking east from the Olive Street (N-16) bridge. WB traffic was being routed to the off ramp past the scene and back onto I-80.

One person died and at least one other was injured in the crash that happened just before 1-p.m. near the 57-mile marker, or the Olive Street exit to Atlantic.

Traffic in the area is extremely tied up as fire/rescue personnel remain on the scene. Additional details are currently not available.