Apartment Building, Residential Nashua, NH – Fourth floor apartment fire contained by sprinkler system June 12, 2018 viking210 Leave a comment Firefighters were called to a fire at the Laton House in Nashua’s Railroad Square late Sunday night. The apartment building was evacuated, sending at least 50 people outside, officials said. Officials said the building’s sprinkler system activated and held the fire in check while residents left the building. Fire officials said two people were hospitalized with minor injuries. The fire started on the fourth floor, but the cause is under investigation, officials said.