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.

National Transportation Safety Board opened a safety investigation in collaboration with Wyoming Highway Patrol into the fiery crash.

Authorities said the body of a third victim was discovered following the deadly multi-vehicle crash in Wyoming last week that caused a fire in a highway tunnel.