kristy seibert lives in the building and says she heard an explosion. kristy it was loud it shook the house. ray: then went to her door. kristy: i could see flames dripping down like a waterfall, and i just heard a bunch of people screaming, and i could smell the smoke, so i had to go and wake up my husband and my son who were sleeping and get them out as soon as possible. ray: there were 20 people inside the six-unit apartment house at the time, 14 adults and six children. firefighters did have to help some people get out. >> smoke was hindering people' s escape through the common areas. ray: everyone made it out, although one person was taken to the hospital to be treated for smoke inhalation. as the fire continued, a third alarm was sounded. >> every fire truck in the city of manchester was on the scene here, including all off duty personnel. ray: the district chief says this was a very labor intensive fire as they had several major concerns they had to deal with simultaneously. >> buildings in close proximity and in a very large building, people stil