Updated with a second video from newsworking (below the first) and dispatch audio at the bottom.
Five firefighters were taken to local hospitals with injuries.
Two firefighters who entered the burning structure at 2249 W. Walnut St. suffered burns and were treated and released from St. Luke’s Hospital-Allentown. Two other firefighters were injured when an exterior wall partially collapsed on them, and one firefighter slipped on the ice rushing to their aid.
Capt. John Christopher said those three firefighters are being treated at Lehigh Valley Hospital-Cedar Crest and are expected to be released.
More coverage at MyFoxPhilly.com and Mcall.com and FirefighterNation.com