

Officials at the San Onofre nuclear power plant shut down one of the facility's two units Tuesday evening after a sensor detected a possible leak in a steam generator tube.



The potential leak was detected about 4:30 p.m., and the unit was completely shut down about an hour later, Southern California Edison said.

"The potential leak poses no imminent danger to the plant workers or the public," utility spokeswoman Jennifer Manfre told The Times.



She said there were no evacuations and that crews were assessing the situation to determine if a leak had occurred.

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