A new issue of a magazine purportedly published by the Islamic State group says its militants captured, enslaved and sold Yazidi women and children, the group's first public confirmation of the allegations.

An article in the English-language magazine released Sunday, called Dabiq, states that "the enslaved Yazidi families are now sold by the Islamic State soldiers." It said fighters divided the women and children among themselves after seizing the town of Sinjar in August.

Human Rights Watch said Sunday that hundreds of Yazidi men, women and children from Iraq are being held captive in makeshift detention facilities in Iraq and Syria by the group. The report noted that the group "separated young women and teenage girls from their families and has forced some of them to marry its fighters."