BEND, OR -- Bend Fire crews are mopping up a fire at Ron's Auto Body on S.E. Armour Road in Bend this morning.  The fire was first reported about 10 o'clock last night. Arriving firefighters found flames coming through the roof of the main building. The roof began to collapse soon after arrival and crews were evacuated from the building for their safety. Crews are still on scene working to extinguish all the remaining hot spots, hampered by the collapsed roof. S.E. Armour is closed until further notice. The cause is under investigation.