LIVINGSTON (AP) — A freight train hit a semitractor-trailer at a crossing east of Livingston, killing both people in the cab of the semitractor, Park County officials said.

The crash happened just after 9 p.m. Sunday, Park Rural Fire District officials said. The collision, in which the tractor was separated from its trailer, sparked a fire that caused some damage to the BNSF Railway train cab and burned grass near the tracks.

The Montana Highway Patrol said the truck did not stop at a stop sign before attempting to cross the tracks, ABC Fox Montana reported.

Park County Coroner Al Jenkins told the Livingston Enterprise he believed the two occupants of the semitractor were out-of-state commercial truck drivers. Their names were being withheld until family members could be notified.

Park County Rural Fire Chief Dann Babcox said he did not believe any of the train's crew were injured. Officials with BNSF Railway referred requests for comment to Montana Rail Link, on whose line the collision occurred. MRL spokesperson Ross Lane said trains resumed using the line at about 5:30 a.m. Monday but the accident remained under investigation by the company and law enforcement.