WASHINGTON  —  New York Times reporter Judith Miller (search) turned over additional notes and underwent questioning by prosecutors Tuesday in the criminal probe of the Bush administration's leak of a covert CIA officer's identity.

In a memo to its staff, the newspaper said Miller will appear Wednesday before a federal grand jury in the investigation, her second grand jury appearance in recent days.

The Times said that it is preparing a story about Miller's "entanglement with the White House leak investigation" and that the story will be completed when the reporter finishes her cooperation with prosecutors.

Miller testified Sept. 30 before a federal grand jury after getting a waiver from her source and after receiving assurances from prosecutor Patrick Fitzgerald (search) that questions would be limited to Miller's conversations with Vice President Dick Cheney's chief of staff, I. Lewis "Scooter" Libby (search).

The reporter had spent 85 days in jail for refusing to cooperate with Fitzgerald.

The additional notes that Miller surrendered Tuesday deal with a separate conversation she had with Libby.

Presidential aide Karl Rove and Libby had conversations with reporters in July 2003 about the identity of Valerie Plame days after her husband, former Ambassador Joseph Wilson, suggested the Bush administration had misrepresented prewar intelligence on Iraq.

Time magazine reporter Matthew Cooper has testified about conversations with Libby and Rove regarding Wilson's wife, who at the time her identity was leaked was a covert CIA officer.

The grand jury looking into the leak expires Oct. 28. Fitzgerald also is calling presidential Rove for additional testimony. It will be Rove's fourth appearance.