Hotel / Restaurant, Restaurant Chelsea, MA – Sprinklers help contain late night restaurant fire March 13, 2015 viking210 On Saturday, March 7, at 12:06 a.m., the fire department responded to the report of a building fire at 17 Fifth St., above the Isla Tropical Restaurant. Crews reported the sprinkler system had activated on the second floor and located the fire inside one of the residential units. Items left on top of the stove ignited and the flames quickly spread to the cabinets above. Crews extinguished the fire and remained on scene checking for extension until approximately 3:30 a.m. Damage is estimated at $30,000. No occupants were injured.