San Francisco officials were working to restore power to the area after roughly a third of Pacific Gas and Electric’s customers were suffering power outages beginning Saturday. 

A fire at a Pacific Gas & Electric substation sparked the outage, according to San Francisco Mayor Daniel Lurie. Then, according to San Francisco Fire Chief Dean Crispen, two more fires broke out. All but one fire was extinguished as of 9:20 p.m. local time on Saturday night. The outage affected 130,000 homes and businesses.

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