Wall St opens lower after strikes in Syria

U.S. stocks opened lower on Tuesday, putting the S&P on pace for a third straight fall, as conflict in the Middle East intensified and after the U.S. Treasury moved to curb "tax inversion" deals.

The Dow Jones industrial average (DJI) fell 41.16 points, or 0.24 percent, to 17,131.52, the S&P 500 (SPX) lost 5.29 points, or 0.27 percent, to 1,989 and the Nasdaq Composite (IXIC) dropped 11.91 points, or 0.26 percent, to 4,515.78.