U.S. stocks close lower

NEW YORK, May 21 (Xinhua) -- U.S. stocks ended lower on Wednesday.

The Dow Jones Industrial Average fell 816.80 points, or 1.91 percent, to 41,860.44. The S&P 500 sank 95.85 points, or 1.61 percent, to 5,844.61. The Nasdaq Composite Index shed 270.07 points, or 1.41 percent, to 18,872.64.