Office Building, Other Business Yuma, AZ – Arson fire at office building mostly extinguished by sprinkler system February 27, 2015 viking210 A fire at a building Thursday afternoon that had been mostly extinguished by the building’s sprinkler system was determined to have been intentionally set. According to Yuma Fire Department spokesman Mike Erfert, shortly after 1:00 p.m., smoke was reported coming from an office in the Mission Valley Plaza, located at 3970 West 24th Street. Once on scene, firefighters found light smoke coming from a vacant office space inside the building. Erfert said the building’s fire sprinkler system, which had been exposed to the heat, had activated, containing and mostly extinguishing the fire by the time firefighters had arrived. Erfert said firefighters ensured the fire was out and had not spread to adjoining areas of the building. Sgt. Leanne Worthen, of the Yuma Police Department, said because the fire appeared to have been in intentionally set, detectives were called to scene, and are investigating the fire as an arson. Given this was the fourth fire in as many days, Erfert wanted to stress the importance of fire sprinkler systems, saying they can keep fires from spreading and can also extinguish them. Fire spreads quickly and can double in size every minute. Even small fires can cause significant damage to property and endanger those nearby. Contrary to many Hollywood portrayals, only sprinkler heads directly exposed to the heat activate, not those in the rest of the room, building, or complex.
