Wall St. opens lower as tech selloff bites

(Reuters) - Wall Street slipped at the open on Tuesday as a selloff in technology shares continued, while investors awaited clues on interest rate hikes from Federal Reserve Chair Janet Yellen's talk in London.

The Dow Jones Industrial Average (DJI) fell 13.14 points, or 0.06 percent, to 21,396.41. The S&P 500 (SPX) lost 2.91 points, or 0.11 percent, to 2,436.16. The Nasdaq Composite (IXIC) dropped 20.41 points, or 0.33 percent, to 6,226.74.