New York, N.Y.—- The Nasdaq Stock MarketSM announced that trading was halted in WorldCom, Inc.- WorldCom Group (NASDAQ:WCOM) and WorldCom, Inc.—-MCI Group (NASDAQ:MCIT), today at 7:42 a.m., Eastern Time, for "additional information requested" from both companies at last prices of .83 and $1.68 respectively. Trading will remain halted until each company has fully satisfied Nasdaq's request for additional information.

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