FTSE 100 loses more ground through mining and supermarket shares
(Close): London's top share index closed down 1.2% as mining and supermarket shares fell.
The FTSE 100 index was down 73.57 at 6,112.02 points.
Mining companies saw some of the biggest falls as the price of metals declined.
Federal prosecutors in Brazil have filed a $43.5bn (£30bn) civil lawsuit against iron miner Samarco and its owners BHP and Vale, over the collapse of a dam last year that killed 19 people.
Profits fell to £587m from £681m in the previous year as the supermarket price war continued to have an impact.
Shares in rivals Tesco and Morrisons were also lower, with Tesco down 5% and Morrisons 1.7%, as research from Kantar Worldpanel indicated that all the big four supermarkets had lost market share in the 12 weeks to 24 April.