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Iraq crisis: Who are the Yazidis? In 60 seconds

14 August 2014 Last updated at 16:21 BST

The UN has declared its highest level of emergency in Iraq as a humanitarian crisis follows the rapid advance by Islamic State militants in the north.

The UN estimates that 1.2 million Iraqis have been internally displaced - including tens of thousands of Yazidis.

BBC News gives some insight into the little-known religious minority - in 60 seconds.

Photographs by Robert Leutheuser,

Video produced by Michael Hirst

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