Three engines and two trucks were dispatched to a reported structure fire to the rear of Hamilton St. in the cities North East. Lancaster County Control reported city Police on location reporting two garages on fire with multiple explostions inside about 1400 hrs.12/21/99. Engine #3 reported heavy smoke showing en rout and heavy fire showing on arrival. Engine #1 was held at Marshal and Hamilton Streets in staging till the fire was put under control about 1410, more details will follow!