The UN Security Council has held an emergency meeting on Iraq, after the largest Christian town was seized by Islamic State militants.

Tens of thousands of Iraqi Christians and Yazidis have fled their homes following a warning by the militants to renounce their faiths or face death.

Canon Andrew White, who is the vicar of the only Anglican church in Iraq, says the international community must do more to help Christians and other minorities. He says people are being "slaughtered".