The FTSE 100 has ended the day down 62.9 points, or 1.01%, to 6,192, as the mining sector extended its losses on the back of weaker metal prices.
Xstrata was the biggest drag on the index with a drop of 4.82% to £21.54, closely followed by Cairn Energy which slipped 4.56% to £18.41, while Antofagasta dropped 4.54% to 457.75p.
Rio Tinto was also down 4.13% to £26.69, closely followed by Vedanta Resources which dropped 4.04% to £12.36, although losses were limited by ITV which gained 0.87% to 115.75p.
Corus posted the biggest gains with a rise of 4.76% to 495.5p, closely followed by British Energy Group which climbed 1.81% to 477p, while Cadbury Schweppes gained 1.79% to 541.5p, and Prudential added 1.35% to 675.5p.
In the US the Dow Jones Industrial Average is down 8.65 points, or 0.07%, to 12,297.17, following a government report which shows last month housing construction hit its lowest level for six years.
Intel is the biggest drag on the index with a drop of 2.1% to $21.87, closely followed by Hewlett-Packard which has slipped 1.69% to $39.45, while Du Pont has dropped 1.01% to $47.15.
Alcoa is also down 0.99% to $28.03, closely followed by United Technologies which is down 0.87% to $66.18, although losses are being limited by Home depot which has gained 0.42% to $37.97.
AT&T is posting the biggest gains with a rise of 1.7% to $32.95, closely followed by Johnson & Johnson which has climbed 1.38% to $67.45, while 3M Company has added 0.87% to $80.99, and Pfizer has increased by 0.78% to $26.97.IFAonline
Two global vehicles
'Further plug advice gap'
Must appoint separate CEOs and boards
Advisers do come out well
Will report to Mark Till