Five employees were burned--including one critically--when a hemp manufacturing plant in Grass Valley, OR was engulfed in flames Sunday afternoon.

Nearby residents were evacuated after the incident due to a risk of combustible chemicals exploding. Evacuation orders were lifted Monday morning after the Oregon State Fire Marshal, Department of Environmental Quality (DEQ), and hazmat teams determined the scene was clear.

Officials said the building was a complete loss. The cause of the fire was unclear, and an investigations was underway.