The UN researchers, from the Office of the High Commissioner for Human Rights, have been collecting accounts of the Isil incursions. It says that 250-300 men were separated and killed in Mr Khalaf's village, Hardan, including ten by beheading; another 400 gunned down in the village of Khocho; another 200 civilians were killed by Isil shelling them as they left the village of Adnaniya; as another group of refugees reached the village of Qiniyeh, the men were separated from the women and children, and 70-90 of them lined up by a ditch and shot.