The International Boxing Association says it has fired executive director Ho Kim with immediate effect.
AIBA did not specify in a statement its reason for dismissing the South Korean official.
AIBA President C. K. Wu says he wants "the world of boxing to move in the new direction and therefore I feel that new vision and leadership are paramount."
Kim had held the job for eight years.
AIBA says Kim has been replaced by his current deputy Karim Bouzidi.
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