Iraqi counter-terrorism service (CTS) vehicles advance towards the Yabasat neighbourhood on March 23, 2017 during their ongoing offensive to push Islamic State (IS) jihadists out of Mosul. About 600,000 people remain in the areas of west Mosul held by the Islamic State group, including 400,000 who are “trapped” in the Old City under siege-like conditions, the UN said. / AFP/RSS PHOTO / AHMAD AL-RUBAYE