At least 17 people were killed in that attack , according to Iraqi health officials . A mortar attack outside a mosque in Mosul leaves 17 dead , police say . The dead are civilians who were trying to escape fighting , police say . Nearly 500,000 people are estimated to have been displaced this year .
A mortar attack outside a mosque in Mosul leaves 17 dead , police say . The dead are civilians who were trying to escape fighting , police say . Nearly 500,000 people are estimated to have been displaced this year .