Islamic State fighters, who have beheaded and crucified captives in Iraq in their drive to eradicate non-believers, have driven thousands of people of the Yazidi religious sect into the Sinjar mountain range in northern Iraq. Who are the Yazidis and and what do they believe in? Here are some answers.
PHOTOGRAPHY: Reuters/ SOURCES: Minority Rights Group, UNHCR, Reuters, Cale Salih/New York Times
