At 0739 Holbrook was notified of a storage unit fire at Prime Storage Facility located at 868 Lincoln Ave. First arriving was Chief Apostol who immediately transmitted a working fire advising multiple units were showing fire. Automatic mutual aid plan was activated bringing additional manpower and equipment to the scene. Engine 4 was first to arrive and laid 5 inch supply line and proceeded inside the complex to the fire leaving a 600 ft stretch. Fire damage was contained to approximately 10 units with smoke damage to numerous others. Scene was secure at 1000 hrs. with one firefighter sustaining minor injuries. Firefighter was transported to Stonybrook University hospital for observation.