At 0644 hrs. Holbrook was activated for a vehicle fire inside a commercial building located at 1150 Lincoln Ave. Upon arrival Chief Heinssen confirmed an ambulance fire inside a commercial structure. Engine 1 arrived first followed by Engine 6 which had dropped a 5 inch supply from Knickerbocker Ave. Truck 10 took a position on the 1 side and Engine 2 and Engine 5 responded to the 3 side. A quick aggressive interior attack prevented additional vehicles which were inside from damage.