NEW YORK, Nov 23 (Reuters) - U.S. stocks sank on Tuesday as investors dumped risky assets on escalating tensions in the Korean peninsula and as euro-zone debt worries mounted.
The Dow Jones industrial average tumbled 142.21 points, or 1.27 percent, to end unofficially at 11,036.37. The Standard & Poor's 500 Index fell 17.11 points, or 1.43 percent, to finish unofficially at 1,180.73. The Nasdaq Composite Index lost 37.07 points, or 1.46 percent, to close unofficially at 2,494.95. (Reporting by Angela Moon; Editing by Jan Paschal)