U.S. stocks close lower

NEW YORK, Aug. 21 (Xinhua) -- U.S. stocks ended lower on Thursday.

The Dow Jones Industrial Average fell 152.81 points, or 0.34 percent, to 44,785.5. The S&P 500 sank 25.61 points, or 0.4 percent, to 6,370.17. The Nasdaq Composite Index shed 72.55 points, or 0.34 percent, to close at 21,100.31.