ICC prosecutor Karim Khan says court signed an agreement this week to establish a joint investigative team with Ukraine, Poland and Lithuania to probe war crimes claims

Jennifer Wenisch guilty of crimes against humanity for enslavement, aiding child's killing, membership of terror group; 5-year-old was chained up outside in Mosul, died of thirst

Jennifer Wenisch and husband 'bought' woman and child as slaves in Mosul; girl was chained up outside and died 'agonizing death of thirst in the scorching heat,' say prosecutors