Other - Residential, Residential Oakley, CA – Early morning fire in multi-family structure controlled by home fire sprinkler system April 7, 2015 viking210 The fire was called in about 6:02 a.m. at a multifamily residential structure in the 2000 block of Rubens Way. The household sprinkler system largely brought the fire under control, but the downstairs room received major water damage and moderate smoke damage. No dollar estimate for the damage was available. In a news release, the fire district said the probable cause of the fire was a discarded cigarette. No one was injured in the blaze.