![MENA-Iraq-Mosul-mass-graves-Nov-2016-3](/sites/default/files/multimedia_images_2016/2016-11-12_09.57.52_-_copy2.jpg)
A home used as a prison by ISIS in Hammam al-Alil, where fighters held policemen before executing them and leaving their bodies in a mass grave, according to witnesses. All the walls were painted black, and the windows were covered in order to keep the prison in the dark.
© 2016 Belkis Wille/Human Rights Watch