Wall St ends lowers

U.S. shares closed lower amid ongoing concerns in euro zone and after credit-rating agency Egan-Jones downgraded Spain's credit rating to CCC+ from B.
Dow Jones Industrial Average dropped 77.42 points, or 0.62 percent, to close at 12,496.38 after struggling between small gains and losses for most of the session.
S&P 500 fell 9.30 points, or 0.70 percent, to end at 1,314.88.
Most key S&P sectors finished lower,led by consumer discretionary and materials,while telecom shares managed slight gains.
Nasdaq composite slid 24.46 points, or 0.86 per cent, to end at 2,818.61.