CALDWELL, Idaho (AP) — Authorities say the driver of a tractor-trailer died in southwestern Idaho when he failed to yield at a train crossing and was struck by a locomotive.

Idaho State Police Trooper Donnie Heida tells KTVB that the collision happened at about 10 a.m. Thursday in Caldwell.

Heida says the crossing has a stop sign but no crossing arm.

Heida says the Union Pacific Railroad train couldn't stop in time.

The truck driver's name hasn't been released.

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Information from: KTVB-TV, http://www.ktvb.com/