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Tesco reports sharp fall in sales

4 June 2014 Last updated at 21:46 BST

Britain's biggest supermarket chain, Tesco, has reported its worst results in 20 years.

Sales over the past three months were down nearly 4% - the third consecutive quarterly fall.

Philip Clarke, Tesco's chief executive, has said that Tesco's figures will remain pretty grim for a while.

Kamal Ahmed reports.