Wall St falls after Greek referendum call

The Dow Jones industrial average dropped 259.93 points, or 2.17 percent, to 11,695.08. The Standard & Poor's 500 Index lost 33.41 points, or 2.67 percent, to 1,219.89. The Nasdaq Composite Index fell 78.24 points, or 2.91 percent, to 2,606.17.

(Reporting by Chuck Mikolajczak; editing by Jeffrey Benkoe)