Underground darm in south London
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London farming goes underground

30 January 2014 Last updated at 14:37 GMT

Herbs, shoots and mini-vegetables are being grown underground in old World War Two tunnels in south London.

Following an 18-month trial at the farm below the London Underground's Northern Line, Michelin starred chef Michel Roux Junior is hoping the produce will soon be available across the capital.

BBC London's Tarah Walsh reports.