COLUMBIA FALLS, Mont. — Fire crews returned to the Weyerhaeuser Plant in Columbia Falls early Friday morning to extinguish a fire.

Columbia Falls Fire Chief Karl Weeks told NBC Montana the first fire, which happened Wednesday morning , originally started in an electrical box in the electrical control room.

Weeks says hotspots were still going and that the second fire started from a hot spot in a hard-to-reach area, with crews dispatched at 6:36 a.m.

No injuries were reported.

NBC Montana will follow this story, sharing the latest information available.