Nursing Home/Senior Living, Residential, Residential High Rise San Diego, CA – Sprinklers help contain blaze at senior residential high-rise; No injuries May 19, 2015 viking210 A fire of unknown origin erupted in a City Heights senior-housing high-rise Monday afternoon. The non-injury blaze began spreading on the seventh floor of the 10-story building in the 4100 block of 42nd Street about 2:45 p.m., according to the San Diego Fire-Rescue Department. It took crews about a half-hour to extinguish the flames, which appeared to have originated on or near an outdoor deck, SDFRD Capt. Joe Amador said. A built-in fire sprinkler helped keep the blaze from rapidly spreading prior to the arrival of emergency personnel, he said. Firefighters were able to contain the fire to the unit where it originated, though several nearby ones sustained smoke and heat damage, according to Amador. Authorities evacuated about 70 people from the building and directed others to remain in their apartments for a time as a precaution. The American Red Cross was called in to help arrange interim lodging for those unable to return to their residences immediately.