Fire crews in Danville were working hard to extinguish a massive fire at Blue Ridge Fiberboard on Friday. The Danville Fire Dept. reported a significant amount of smoke in the area. The fire was burning in a debris pile of waste products and no buildings were involved. The items were not hazardous, but people in the area were expected to smell smoke during the night from the fire. Fire crews expect it will last into the day on Saturday due to the amount of material on fire. There have been fires reported at this plant before, but Deputy Fire Chief Tim Duffer says this is the largest fire they've had at this plant. Fire Command issued a call for 15 off-duty firefighters to assist, with over 30 firefighters on the scene. The cause of the fire is still under investigation.