Early struggles on the FTSE 100 have seen it slump 33.7 points, or 0.51%, to 6582.70 in early trading.
Cable and Wireless made early gains, up 5.1 points, or 2.73%, to 191.8p, as was Experian, up 9.5 points, or 1.59%, to 608.5p.
Vodafone also weighed in with gains, going up 1.7 points, or 1.13%, to 151.6p.
However, this was offset by Royal & Sun Alliance Insurance, down 6.7 points, or 3.95%, to 163p, and Morrison Supermarkets, down 6.75 points, or 2.11%, to 313.75p.
Drax also suffered in early trading, going down 16 points, or 1.95%, to 804.5p.
In the US, the Dow Jones ended the day marginally down, finishing down 14.3 points, or 0.11%, on 13525.65.
Alcoa finished up 1.42 points, or 3.65%, to 40.37, Caterpillar closed up 0.52 points, or 0.69%, to 76.03, and Home Depot, finished 0.25 points, or 0.65%, to 38.78.
However, these gains were overshadowed by losses for McDonald’s, which finished down 0.93 points, or 1.77%, to 51.57.
In addition, Intel Corp, down 0.32 points, or 1.39%, to 22.67, and International Business Machines also struggled.
In Japan, the Nikkei 225 Stock Average lost 8.15, or 0.1%, to 17,696.97 after rising as much as 0.3%.
Mitsui Sumitomo Insurance, Japan's second-largest property and casualty insurer by market value, dropped 49 yen, or 3.1%, to 1,516, while Sompo Japan, the nation's third largest, fell 32, or 2%, to 1,542.
However, there were gains for Japan Tobacco, which jumped 28,000 yen, or 4.8%, to 608,000.
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