Commodity shares drag FTSE 100 lower
(Close): London's benchmark share index fell more than 1%, with commodity-related shares being hit by the drop in oil prices.
At close on Tuesday, the FTSE 100 index was down 73.49 points, or 1.19%, at 6091.23.
Oil prices have slid recently on doubts that producers will agree to curb output at a meeting later this month.
Mining companies were also affected, with shares in BHP Billiton, Glencore and Anglo American all down.
Shares in supermarket giant Tesco fell 1.7% after Deutsche Bank lowered its rating on the stock to "hold" from "buy".
In the FTSE 250, shares in Card Factory rose 4.25% after it reported strong full-year results and raised its dividend.
Full-year pre-tax profits nearly doubled to £83.7m, and the retailer increased its dividend by a third.