Cincinnati firefighters are investigating a fire that caused extensive damage to a Mount Airy apartment building. Residents of the 12 units at 5022 Hawaiian Terrace will not be able to return until the building can be restored. The Red Cross is assisting them. Fire investigators say the fire was agressive starting in an apartment on the first floor and spreading to the upper floors. The causes is not known and no one was seriously hurt. Damage is estimated at 200-thousand dollars.