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