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Nigeria violence: Boko Haram blamed for new massacre

8 June 2014 Last updated at 23:27 BST

There are reports of continuing atrocities in Nigeria by the radical Islamist group Boko Haram, which kidnapped more than a 200 schoolgirls in April.

It is thought as many as 200 people have been killed in the last two weeks as a result of attacks in the Gwoza hills, near the border with Cameroon.

Will Ross reports on what he describes as "a brutal campaign of violence".

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