Washington (CNN) Deputy national security adviser Victoria Coates is leaving the National Security Council and going to the Energy Department, according to a statement released by the council on Thursday.

A senior administration official rejected those rumors Thursday and said that Coates' move has been in the works for some time.

"The White House leadership rejects rumors that have circulated recently and does not put any stock in the suggestion that Victoria Coates is the author of Anonymous: A Warning or the related Op-Ed in the New York Times," the senior official said.

"Dr. Coates' transition to the Department of Energy has been in the works for several weeks and reflects the continued trust and confidence the Administration places in her as she takes on this sensitive role at the Department of Energy, where she will continue working to implement the President's agenda," the official added.

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