At 0234 hrs. Station 3 was alerted for a building fire at 101 S. Liberty Street in the 4-1 Box. First arriving units advised of a working fire, with fire through the roof. Engine 32 responded with 7 members. Upon arrival, crew from Engine 32 assisted with fire attack on Division 2, along with assisted on laying a supply line. Engine 32 cleared the call at 0457 hrs.