Two people were killed and five were injured in a massive and deadly pileup inside a southwest Wyoming highway tunnel Friday, according to police. The tunnel remains closed as authorities work to ensure it is safe for use again.

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.

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