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The SFFD told KTVU that the outage was affecting at least 130,000 customers.
SAN FRANCISCO – Tens of thousands of customers in San Francisco were left without power due to a massive PG&E outage on Saturday.
PG&E first reported an outage in the Inner Sunset affecting just under 15,000 customers around 9:40 a.m., which was followed by outages at around 10:10 a.m. affecting the Richmond, Presidio, and Golden Gate Park areas, and parts of downtown San Francisco that affected thousands more.
BARTÂ said trains would not run through the Powell Street, Civic Center and Van Ness stations due to the power outage. Video shared with KTVU showed the BART stations in the area darkened, with toll gates and escalators not functioning.
 Also, the San Francisco Department of Emergency Management said traffic lights in the area would likely be affected.
San Francisco Fire Department Lt. Mariano Elias told KTVU that the outage was affecting at least 130,000 customers, and was possibly related to a fire at a PG&E substation in the area of Eighth and Mission streets that was reported around 3:15 p.m.Â
SFFD crews were at the scene of the fire and were working to shut off power in the immediate area in order to extinguish the flames.
PG&E said power was estimated to be restored to some areas around 3:45 p.m., while it was unknown when power would be restored for others.
This is a developing story. Please stay with KTVU for updates.