London 2012 Olympics

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Olympic energy security

London Tonight has discovered that a high security fence is being built around a gas plant in Hertfordshire. The plant is tucked away in woods.

It's believed the site supplies gas to north London and Stratford - including the Olympic park. Around one hundred workers are erecting a fence around the site.

Work will continue there for the next five months.

The National Grid said in a statement: "We carry out robust security in conjunction with the Government and LOCOG [The London 2012 Organising Committee]."

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