(Albany, OR) -- An investigation is ongoing into a fire that damaged a wood products manufacturing plant in Albany last week. Firefighters responded to the plant on Friday. Officials say the fire was located on top of a large building, making it difficult to access, and was moving into the building through air ducts. The fire was contained to the area where it started. Firefighters used a drone with a heat sensitive camera to identify hot spots and put out the fire. No one was hurt.