One person was injured and 15 residents were displaced by a fire at a three-family home on Meadow Street in Danbury. Firefighters responded around 4 p.m. Monday and found flames on the third floor, prompting a second alarm. All occupants were accounted for. One person was treated for burns and smoke inhalation before being taken to Danbury Hospital. The Red Cross is assisting displaced residents. The cause remains under investigation.