Yahoo Inc Chief Executive Carol Bartz was fired by the company's board, sources familiar with situation told Reuters on Tuesday.

Bartz said in a memo to employees that she was fired over the phone, one of the sources said.

I am very sad to tell you that I've just been fired over the phone by Yahoo's Chairman of the Board, she said in a terse email. It has been my pleasure to work with all of you and I wish you only the best going forward.

The company's board named Chief Financial Officer Tim Morse as the interim CEO, the other source said.

(Reporting by Alexei Oreskovic; editing by Carol Bishopric)