SF underground explosion causes power outage

<div class="meta image-caption"><div class="origin-logo origin-image none"><span>none</span></div><span class="caption-text">An underground explosion in San Francisco&#39;s Tenderloin neighborhood caused a power outage due to a problem with PG&#38;E&#39;s equipment. About 3,200 customers are without power. &#40;ABC7 Photo&#41;</span></div>
June 5, 2009 3:01:54 PM PDT
An underground vault explosion in the O'Farrell and Polk area of San Francisco led to heavy smoke pouring out of manholes and a fire that burned for about two hours.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.