Stocks fell on Thursday as investors worried the economic recovery won't be as quick as previously thought, while a cut of Britain's credit rating outlook heightened worries about the U.S. fiscal condition.

* The fiscal worries sparked flight across dollar-denominated assets.

* Based on the latest available data, the Dow Jones industrial average <.DJI> ended unofficially down 129.91 points, or 1.54 percent, at 8,292.13. The Standard & Poor's 500 Index <.SPX> slid 15.14 points, or 1.68 percent, to end unofficially at 888.33.

* The Nasdaq Composite Index <.IXIC> lost 32.59 points, or 1.89 percent, to end unofficially at 1,695.25.

(Reporting by Ellis Mnyandu; Editing by Jan Paschal)