Yazidis revere the Bible and Qu’ran; much of their centuries-old religion is oral. Thirty-six Yazidis are free after nearly three years’ captivity by IS. They are in UN centres in Dohuk, in Kurdish northern Iraq. It is unclear whether they escaped or were freed; the UN wouldn’t give more information to avoid jeopardising future releases. IS killed and enslaved thousands of Yazidis after seizing the Sinjar area in 2014. Kurdish forces regained control in 2015, but many Yazidis were held captive by IS elsewhere as the group took over large swathes of northern Iraq. The 36 survivors - men, women and children - are being reunited with family members and offered care and medical and psychological aid. The women and children are being cared for at dedicated service points, and will be referred for more specialised treatment. A spokesperson said, ‘What these women and girls have endured is unimaginable.’