Women and girls from Iraq's Yazidi religious minority forced into sexual slavery by the Islamic State jihadist group have committed suicide or tried to, Amnesty International said on Tuesday. IS militants have overrun swathes of Iraq since June, declared a cross-border caliphate also encompassing parts of neighbouring Syria, and carried out a litany of abuses in both countries. The group has targeted Yazidis and other minorities in north Iraq in a campaign that rights group Amnesty said amounted to ethnic cleansing, murdering civilians and enslaving others for a fate that some captives consider even worse than death. "Many of those...