The Amtrak train, which operates between Seattle and Portland, had just begun using a new high-speed route Monday morning.
Partial train derailment impacts some Metra, Amtrak Chicago-area service
At about 10:50 p.m. Tuesday when the third, fourth, and fifth cars of the eight-car train derailed. The derailed cars remained upright, and the other five cars and the locomotive remained on the tracks. There were three passengers on the train at the time; there were no injuries.