Prosecutors raid South Korea's nuclear operator as probe widens into fabricated test results

South Korea's sole nuclear operator says investigators raided its offices as part of a probe into nuclear plant cables.

Korea Hydro & Nuclear Power Co. spokesman Lee Yoon-dong said Thursday prosecutors seized documents and computer hard drives from offices including its headquarters in southeastern Korea. Prosecutors could not be reached for comment.

South Korea shut down two nuclear power plants last month after discovering that a company contracted to conduct tests on control cables had fabricated the results. The cables failed to meet international standards for capacity to withstand changes in voltage and pressure.

The revelations deepened public worries about the nuclear industry responsible for a third of South Korea's power supply. The nuclear industry has been mired in corruptions and scandals.