Leading shares have fallen back, with some profit taking in mining shares and a slide in Lloyds Banking Group following its figures.
Antofagasta is the biggest faller so far, down 40.5p at 500p after it said full year copper production would be at the lower end of its guidance and suggested it might reconsider a hydroelectric project at its Los Pelambres mine because of cost overruns.
Other miners have given up some of their recent gains, with Anglo American down 21.5p at 1092.5p and BHP Billiton 22.5p lower at 1238.5p. A dip in the oil price on continuing doubts about whether production curbs can be agreed by Opec next month has also hit sentiment in the commodities sector.
Meanwhile Lloyds Banking Group has lost 1.74p to 53.61p after it unveiled a fresh £1bn provision for mis-selling payment protection insurance.
