The armed group Islamic State is holding hundreds of Yezidi men, women, and children from Iraq captive in formal and makeshift detention facilities in Iraq and Syria.

The group has systematically separated young women and teenage girls from their families and has forced some of them to marry its fighters, according to dozens of relatives of the detainees, 16 Yezidis who escaped Islamic State detention, and two detained women interviewed by phone. They said the group has also taken away boys and forced captives to convert to Islam.