At least two people were killed in a "multi-vehicle crash" in an interstate tunnel, Wyoming authorities confirmed Friday.

Two people were killed in a multi-vehicle crash inside a southwest Wyoming highway tunnel Friday, the state Department of Transportation said. Authorities shut down traffic in both directions along Interstate 80 in Green River after the pileup. The major, coast-to-coast roadway runs from San Francisco to Teaneck, New Jersey.

The crash occurred at 11:37 a.m. under a snow-dusted hill in Green River, Wyo., according to the State Transportation Department. By 5 p.m., the tunnel, which leads traffic west on Interstate 80, had been evacuated and the scene had “been contained,” the department said in a statement.