Firefighters from seven different departments spent five hours Saturday battling a fire at a new sawmill near Cornell, in northwestern Wisconsin. Cornell Assistant Fire Chief Matt Boulding said investigators believe a piece of equipment inside the sawmill malfunctioned started the Blaze. Boulding said the building is a complete loss. Three semi trailers next to the sawmill also were destroyed. Fire crews were able to save one semi trailer that was near the building, WEAU-TV reported. Cornell is 40 miles northeast of Eau Claire.