COUNCIL BLUFFS, Iowa (AP) — Authorities say one person is dead after being hit by a semitrailer this afternoon, on Interstate 80 in Council Bluffs. The accident happened about 1 p.m. , in the eastbound lane near the Lake Manawa exit. Eastbound traffic was being diverted while Council Bluffs police and the Iowa State Patrol investigated. Authorities aren’t sure why the person was on the interstate. No other details, including the person’s name, were immediately released.