The South Korean agency quoted prosecutors as saying arrests had been made and computer hard drives and documents on sports industry projects had been confiscated.
The raid comes after the country's sports ministry announced last week it was cutting off funding to several federations amid concerns about corruption.
A KSF official confirmed to Reuters by telephone that prosecutors had taken evidence from the headquarters but was unable to comment further.
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(Writing by Peter Rutherford; Reporting Dahee Kim; Editing by John O'Brien)
