Around 0200 hours Box 1-2 sent companies to 1711 Walnut Street for a structure fire with possible entrapment. Captain 2 (Enterline) arrived on location with smoke showing from a 3 story, middle of the row, dwelling. With one person still confirmed inside, Captain 2 (Enterline) entered the structure and guided out the occupant from the third floor. The balance of the first alarm was requested to the scene. Squad 8 arrived on location and crews quickly went to work on a rapidly advancing kitchen fire that was on the verge of flashover before companies knocked down the bulk of the fire with no extension. Four people were taken to the hospital for smoke inhalation. The first floor suffered heavy damage and a total of 6 occupants were displaced.