Stocks closed lower in the U.S. and elsewhere Tuesday as a new flare-up of political uncertainty in Greece has investors worrying about the stability of the euro again.<br />
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The Dow Jones industrial average fell 55 points, or 0.3 percent, to close at 17,983.<br />
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The Standard & Poor's 500 index lost 10 points, or 0.5 percent, to 2,080 and the Nasdaq composite was down 29 points, or 0.6 percent, to 4,777.<br />
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European markets fell. Greece's main index was down slightly following a sharp drop a day earlier.<br />
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Benchmark U.S. crude oil rose 51 cents to $54.12 a barrel in New York. Oil has fallen about 50 percent since June.<br />
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Bond prices rose. The yield on the 10-year Treasury note edged down to 2.19 percent.