May 15 (Reuters) - The IMF said on Sunday its No. 2 official, John Lipsky, will step in as acting managing director of the global institution in the absence of IMF chief Dominique Strauss-Kahn, who is charged with sexual assault.

IMF spokesman William Murray said Lipsky will meet with members of the IMF board on Sunday to inform them of developments. The board is the main overseer of the IMF's daily operations.

"In line with standard IMF procedures, John Lipsky, first deputy managing director, is acting managing director while the MD is not in DC," Murray said in a statement. "Mr. Lipsky will chair the informal Board session today." (Reporting by Lesley Wroughton; Editing by Eric Beech)

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