Wall Street falls further on profit worry and banks
Highlights:
* The financial sector was the worst performer as concerns of more losses stemming from the credit crisis pulled down shares of Citigroup and JPMorgan Chase .
* Apple Inc was among the top laggards on the Nasdaq.
* The Dow Jones industrial average fell 113.02 points, or 1.31 percent, at 8,486.16. The Standard & Poor's 500 Index lost 18.39 points, or 2.07 percent, at 871.96. The Nasdaq Composite Index gave up 32.12 points, or 2.04 percent, at 1,539.47.
(Reporting by Deepa Seetharaman; Editing by James Dalgleish)