"Powell is the most prominent of four Cabinet officials whose resignations will be announced Monday, sources told CNN.
The others will be Agriculture Secretary Ann Veneman, Education Secretary Rod Paige and Energy Secretary Spencer Abraham, the sources said.
Powell told his senior staff that he planned to stay on until a replacement was confirmed, State Department officials said.
State Department officials told CNN that Bush and Powell decided mutually that it was time for him to go.
The officials said that Powell plans to keep working on a number of key issues, including North Korean nuclear talks, the Iraqi elections scheduled for January and Middle East peace process.
Powell was scheduled to travel to Egypt next week for a conference on Iraq."
More at www.cnn.com