Power Restored in San Diego

Gregory Bull / AP Photo

People talk around candles in front of the bar at Voyeur in the Gaslamp District during a power outage, Thursday, Sept. 8, 2011, in San Diego. A power outage is affecting millions of people across southern California, Arizona and Mexico. San Diego Gas & Electric Co. Darcel Hulce said that crews Thursday believe the outage was caused by a system breakdown and assured people it was not the result of a terror attack. (AP Photo/Gregory Bull)

Residents of San Diego can turn their lights back on. The San Diego Gas and Electric Company says it has restored power to all 1.4 million customers in its service area after a utility worker set off a massive electrical failure while doing maintenance work near Yuma, Ariz. The accident knocked out power for almost five million people. Offices closed, but workers were stuck in gridlock because traffic lights went out. Sewage pumps failed, sending waste into the San Diego Bay. People were stuck in elevators and on rides at Sea World and Legoland. APS, Arizona's largest electric utility, says it is investigating why the accident cascaded across the power grid instead of remaining isolated in the Yuma area.