LAUSANNE, Switzerland (AP) -- The International Gymnastics Federation opened disciplinary cases against two judges over suspected mistakes during the women's events at the 2011 World Championships in Tokyo.

The disciplinary commission will meet in mid-April, and the two judges' identity will remain confidential, the federation said Thursday.

"Upon publication of the commission's decision, the identity of the two judges will be released," the federation said in a statement.

FIG spokesman Philippe Silacci told The Associated Press that world championships results and medals will not be revised.

Qualification places for the London Olympics are also unchanged despite the disciplinary procedures, Silacci said.

The federation did not identify the events the judging errors are suspected to have occurred last October.

The potential mistakes were spotted by a FIG technical committee two weeks ago during detailed studies of judging marks, Silacci said.

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