The FTSE 100 has ended the day down 32 points, or 0.51%, to 6,287, as a plunge in crude oil and metal prices led commodity and energy stocks lower.
Cairn Energy was the biggest drag on the index with a fall of 4.72% to 317.15, with miners following close behind as Kazakhmys fell 4.32% to £10.40, Rio Tinto dropped 4.03% to £25.46, while Xstrata slipped 4.01% to £23.20.
International Power was also among the top fallers with a drop of 4.09% to 374.75p, although losses were limited by Vodafone which gained 2.07% to 148.25p and by BT which climbed 2.65% to 319.25p.
However Morrison Supermarkets posted the biggest gains with a rise of 2.67% to 269.25p, closely followed by Wolseley which added 2.14% to £12.90, while AstraZeneca has climbed 2.12% to £28.46.
In the US the Dow Jones Industrial Average is down 12.02 points, or 0.1%, to 12,462.5 in early trading, following concerns over the state of the economy.
AT&T is the biggest drag on the index with a fall of 1.6% to $34.39, closely followed by McDonalds which is down 1.34% to $43.28, while Caterpillar has slipped 1.06% to $60.51.
Du Pont is also down 1.06% to $48.52, closely followed by Alcoa which has fallen 0.82% to $29.09, although losses are being limited by General Motors which is up 0.88% to $29.71.
Intel is posting the biggest gains so far with a rise of 3.98% to $21.15, closely followed by Merck which is up 1.34% to $44.61, while Johnson & Johnson have climbed 1.14% to $67.16, and Altria have added 0.91% to $87.30.IFAonline
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