Search engine giant Yahoo has announced the resignation of General Counsel, Corporate Secretary and Executive Vice President Michael Callahan, effective July 9.

Callahan, who joined Yahoo in December 1999, stated in his resignation letter  to the company that he has decided to move on to new opportunities, although he did not say what those opportunities will be.

Ron Bell, who has been serving as general counsel for products and the Americas region, will serve as interim general counsel.