Apartment Building, Residential Intentionally set fire at apartment eliminated by sprinkler (Morgantown, WV) March 5, 2014 viking210 Just after midnight on Saturday, March 1, a fire began in an apartment building. The heat from the fire activated the fire sprinklers, which extinguished the blaze. Investigators have found the the fire was intentionally set, and the room in which it began was vandalized. No one was injured according to reports.