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Pakistan army launches 'major offensive' in North Waziristan

16 June 2014 Last updated at 01:06 BST

Pakistan's army says it has launched a "comprehensive operation" against militants in North Waziristan, near the Afghan border.

It comes hours after fighter jets carried out air strikes against militant strongholds in the area.

The crackdown follows an attack on Karachi airport last week.

Mike Wooldridge reports.

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