chaffee

Updated with updated details

The National Transportation Safety Board has opened an investigation into what caused two freight trains to collided at approximately 2:30 Saturday morning near Chaffee, Mo., severely damaging a bridge on Highway M.

The bridge collapsed after a Union Pacific train hit the side of a Burlington Northern Santa Fe train at a rail intersection. Derailed rail cars then hit columns supporting the Highway M overpass, causing it to buckle and partially collapse.