Wall Street falls as oil sell-off continues
(Close): US stocks closed lower after a volatile week as sell-offs in commodity markets showed no signs of easing and oil prices reached new multi-year lows.
The Dow Jones fell 368.92 points, or 2%, to 17.126.92.
Crude oil prices fell to new lows after the US announced it would lift a 40-year ban on crude oil exports.
Wednesday's decision by the Federal Reserve to raise interest rates for the first time in nearly a decade, spurred some of the week's volatility.
Gold futures dipped by 10.6% as investors move back to the dollar.
On the Nasdaq, shares in Blackberry rose by more than 10% after it reported a smaller-than-expected third quarter loss and its first quarter to quarter revenue gain in more than two years.