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China air zone 'purely for defence' says ambassador

6 January 2014 Last updated at 01:05 GMT

China's ambassador to the UK has told the BBC that the air-control zone, which Beijing set up over disputed islands in the East China Sea, is "purely for defence".

The Chinese government is embroiled in a bitter row with Japan over the ownership of the area.

But Ambassador Liu Xiaoming said the country's actions regarding the zone were not a sign of aggression.

Michael Bristow reports.

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