Apartment Building, Residential Westford, MA – Sprinkler system does its job in afternoon apartment fire February 12, 2015 viking210 Fire officials are investigating whether an icicle that fell from a condominium rooftop punctured and ignited a gas meter, sparking a three-alarm fire at the complex Wednesday. Four local families were displaced by the midday blaze, which scorched parts of the exterior walls of their condominium building on Bandon Circle. There were no reports of injuries. What kept the fire from causing further damage was the sprinkler system that activated inside the condos, according to Westford fire Lt. Donald Parsons.