. >> that heavy fire broke out at the arthur capper seniorts apartmn 5th street southeast just after 3:00 p.m. neighbors saypl pwere running through the halls yelling fire, fire, get out. >> one of the majorue isss, residents said, was that the fire alarm never went off. news 4's megan mcgrath is live at that building on 5th street lesoutheast. peut there yesterday told me they didn't hear the fire alarm, didn't see the sprinkler system go off. what did we hear from fire officials about thatissue? >> reporter: well, they've heard those reports too. we can tell you that. that certainly is going to be a big part of this investigation. did the alarms work? did the smoke detectors go off? d the sprinklers work? we don't have a definitive answer at this point. certainly a bstion lingering out there. as you look at the scene live, you can see we have another shift of emergency vehicles that have come i they've set up those tower hoses there. they're not actually spraying water at this point, but they're standing by just in case there is any kind of a flare-up this morning. this was just a