US STOCKS-Market extends losses on economy worry, GM tumbles

(Updates to show stocks extending losses)

NEW YORK, Nov 10 (Reuters) - U.S. stocks extended losses on Monday as investors doubted whether China's deep-pocketed stimulus plan would avert a global economic slump and shares of General Motors (GM.N: Quote, Profile, Research) fell to 62-year lows on worries about the carmaker's dwindling cash.

The Dow Jones industrial average .DJI was down 79.64 points, or 0.89 percent, at 8,864.17. The Standard & Poor's 500 Index .SPX was down 12.59 points, or 1.35 percent, at 918.40. The Nasdaq Composite Index .IXIC was down 26.70 points, or 1.62 percent, at 1,620.70.

(Reporting by Ellis Mnyandu; Editing by Kenneth Barry)