SF underground explosion causes power outage

June 5, 2009 (SAN FRANCISCO) Power is out to approximately 4,500 customers and there are reports of people trapped in elevators.

Pedestrian or vehicle traffic was stopped in the O'Farrell/Polk area.

Smoke also came out of manholes around Civic Center. Fire crews were spread around the city because of concern that the fire might spread underground.

At leats one building on the 800 block of O'Farrell was evacuated due to smoke in the building.

The fire began burning since around 11:30 a.m. and burned for approximately two hours.

No injuries were reported.

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