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PHOTO GALLERY: Iraq's Yazidis suffer from siege as Christians flee




Displaced Iraqis from the Yazidi community wait at the entrance of the camp of Bajid Kandala as they look for their family members who they became separated from during their escape, at Feeshkhabour town near the Syria-Iraq border, in Iraq Saturday, Aug. 9, 2014 (Photo: AP)

Displaced Iraqis from the Yazidi community settle outside the camp of Bajid Kandala at Feeshkhabour town near the Syria-Iraq border, in Iraq Saturday, Aug. 9, 2014 (Photo: AP)

In this photo provided by Mikey Hassan, members of his extended family stop along the side of the road as they flee militants of the Islamic State group, who took over the city of Sinjar, Iraq (Photo: AP)

Displaced people, who fled from the violence in the province of Nineveh, arrive at Sulaimaniya province August 8, 2014 (Photo: Reuters)

Displaced people, who fled from the violence in the province of Nineveh, arrive at Sulaimaniya province August 7, 2014 (Photo: Reuters)

Displaced Iraqis ride on a truck on a mountain road near the Turkish-Iraq border, outside Dahuk, in Iraq Saturday, Aug. 9, 2014 (Photo: AP)

Displaced people, who fled from the violence in the province of Nineveh, arrive at Sulaimaniya province August 7, 2014. The United States began to drop relief supplies to beleaguered Yazidi refugees fleeing Islamist militants in Iraq, but there was no immediate sign on Friday of U.S. air strikes to halt the sweeping advance of Islamic State fighters. Picture taken August 7, 2014 (Photo: Reuters)

Displaced Iraqis from the Yazidi community settle at the camp of Bajid Kandala at Feeshkhabour town near the Syria-Iraq border, in Iraq Saturday, Aug. 9, 2014 (Photo: AP)

Displaced Iraqis from the Yazidi community settle at the camp of Bajid Kandala at Feeshkhabour town near the Syria-Iraq border, in Iraq Saturday, Aug. 9, 2014 (Photo: AP)

Displaced Iraqi Christians settle at St. Joseph Church in Irbil, northern Iraq, Thursday, Aug. 7, 2014 (Photo: AP)

Displaced Iraqi Christians settle at St. Joseph Church in Irbil, northern Iraq, Thursday, Aug. 7, 2014 (Photo: AP)

The Islamic State, which has declared a caliphate in parts of Iraq and Syria, has prompted tens of thousands of Yazidis and Christians to flee for their lives during their push to within a 30-minute drive of the Kurdish regional capital Arbil.