with metrologist melissa magee, jeff skversky, sarah bloomquist and walter perez. ♪ nearly 20 hours afterour alarm fire in old city firefighters are still on the scene and residents not allowed back in what remains of their home. tonight the work continues to make sure this location is safe. sunday night and the big story on action news is a continued battle to secure the scene of an early morning fire that went to four alarms before firefighters were able to get it under control. >> more than 160 people had to be evacuated from apartments and nearby hotel rooms and tonight firefighters remain on the scene. action news reporter annie mccormick is there and joins us live with more, annie. >> reporter: that is right tonight this still remains an active scene and behind me this black is considered a collapse zone firefighters will be out here through the night investigators cannot get inside yet to determine the cause and where exactly the fire began. just after 3:00 a.m. the four alarm blaze broke out at third and chestnut 150 firefighters tackled the fire. >> we were in the right places an