Sinjar Mountains
While ISIL held onto Sinjar city and the southern entrance of the Sinjar Mountains, they seized further terrain north of the mountains on 21 October 2014, thereby cutting the area's escape route to Kurdish areas. Yazidi militias who were securing the holy Sherfedîn shrine, had to withdraw into the Sinjar Mountains. The number of Yazidi civilian refugees was estimated at 2,000–7,000. An American source called this new situation a partial ISIL "siege" of the mountain range.