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According to federal regulators, a small amount of radiation could have escaped from San Onofre Nuclear Generating Station after a water leak forced operators to shut down the reactor at the power plant.

Nuclear Regulatory Commission spokesman Victor Dricks says a small amount of radioactive gas "could have" escaped the San Onofre Nuclear Generating Station on the northern San Diego Coast.

Gil Alexander, a spokesman for Southern California Edison, told the Associated Press that the amount would have been "extremely small" and possibly not detectable by monitors.

Both the company and federal regulators say the release would not have posed a public safety risk.