GM CEO Fritz Henderson resigns; interim CEO named

General Motors Chief Executive Fritz Henderson, the company's second CEO this year, has resigned and been replaced by interim CEO Ed Whitacre, a member of GM's board of directors.

GM made the announcement at a hastily called press conference at its Detroit headquarters "to announce significant decisions reached today by the GM Board of Directors," the website of the Detroit Free Press newspaper reported. Freep.com also reported that Whitacre has been named chairman of GM.