From BBC News website
Up to a quarter of Iraq's Christians are reported to be fleeing after Islamic militants seized the minority group's biggest town.
The Islamic State (IS) group captured Qaraqosh overnight after the withdrawal of Kurdish forces.
IS has been gaining ground in northern Iraq since June, and also controls some of Syria.
The US has warned that the situation for Iraq's minority groups threatens to become a "humanitarian catastrophe".
To read the full article visit http://www.bbc.co.uk/news/world-middle-east-28686998