Update:
A GMC pickup heading south crashed into a semi heading north.
The male driver of the pickup had non-life threatening injuries.
The semi driver was not injured.
Trooper Jeremy Lunblad said the crash happened in a construction zone and is still under investigation.
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A head-on collision between a semi and pickup truck has slowed traffic on Highway 212 south of Laurel.
The Montana Department of Transportation reports the crash happened in the northbound lane about 4 miles north of Rockvale shortly before 1 p.m.
Motorists are advised to expect delays and are asked to reduce speeds in the are as emergency workers arrive.
Traffic can get around the crash in the southbound lane, the agency said.
There was no immediate information on possible injuries.
