pg&e_blackout(2).jpgAn outage knocked out power to about 1,800 PG&E customers in San Francisco’s Noe Valley and Clarendon Heights neighborhoods this afternoon, a PG&E spokeswoman said.

The outage was reported at about 3:45 p.m., spokeswoman Fiona Chan said.

Chan said the outage was caused by a tree that came into contact with power lines in the area of Clarendon Avenue and Oak Park Drive.

PG&E had restored power to about 1,600 customers by 4:30 p.m. and were working to get power back to the rest, she said.

She advised anyone who sees a downed power line to stay away from it and call 911.

“When they see downed power lines, they should assume they are live,” Chan said.

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