A member of the Iraqi security forces shaves in front of a mirror mounted on the window of an armoured car in the village of al- Buseif, south of Mosul, during an offensive by Iraqi forces to retake the western side of the city from Islamic State (IS) group fighters on February 22, 2017. (Photo by Ahmad Al-Rubaye/AFP Photo)





Iraqi Federal police deploy after regaining control of the town of Abu Saif, west of Mosul, Iraq, Wednesday, February 22, 2017. The battle for Mosul, backed by the U.S.-led coalition, has already driven the militants from the eastern half of the city, which is divided roughly in half by the Tigris River. (Photo by Khalid Mohammed/AP Photo)





A sniper with the Iraqi federal police aims at an Islamic State position from the rooftop of a house in the town of Abu Saif, Wednesday February 22, 2017. (Photo by Bram Janssen/AP Photo)





Iraqi Federal police deploy after regaining control of the town of Abu Saif, west of Mosul, Iraq, Wednesday, February 22, 2017. Iraq's government-sanctioned paramilitary forces, made up mainly of Shiite militiamen, have launched a new push to capture villages west of the city of Mosul from Islamic State militants. (Photo by Khalid Mohammed/AP Photo)





A civilian who escaped Islamic State territory phones his family he left behind, Tuesday, February 21, 2017 in Abu Saif, Iraq. Iraqi forces advanced into the southern outskirts of Mosul in a push to drive Islamic State militants from the city's western half. (Photo by Bram Janssen/AP Photo)





Members of the Iraqi rapid response forces look at smoke rising from clashes during a battle with Islamic State militants, south of Mosul, Iraq February 20, 2017. (Photo by Alaa Al-Marjani/Reuters)





Iraqi rapid response forces advancing towards south of Mosul are seen through a shattered glass window of a military vehicle, Iraq February 20, 2017. (Photo by Alaa Al-Marjani/Reuters)





An Iraqi air force helicopter fires during a battle with Islamic State militants in the south of Mosul, Iraq February 20, 2017. (Photo by Alaa Al-Marjani/Reuters)





Members of the Iraqi rapid response forces gather during a battle with Islamic State militants in south of Mosul, Iraq February 20, 2017. (Photo by Alaa Al-Marjani/Reuters)





A tank of the Iraqi army takes part in an operation against Islamic State militants in south of Mosul, Iraq February 20, 2017. (Photo by Alaa Al-Marjani/Reuters)





Smoke rises from clashes during a battle with Islamic State militants in south of Mosul, Iraq February 20, 2017. (Photo by Alaa Al-Marjani/Reuters)





Members of the Iraqi rapid response forces gather during a battle with Islamic State militants in south of Mosul, Iraq February 20, 2017. (Photo by Alaa Al-Marjani/Reuters)





Iraqi rapid response forces fire toward Islamic State militants during clashes in south of Mosul, Iraq February 20, 2017. (Photo by Alaa Al-Marjani/Reuters)





A member of the Iraqi rapid response forces takes part in an operation against Islamic State militants in south of Mosul, Iraq February 20, 2017. (Photo by Alaa Al-Marjani/Reuters)





A member of the Iraqi rapid response forces takes part in an operation against Islamic State militants in south of Mosul, Iraq February 20, 2017. (Photo by Alaa Al-Marjani/Reuters)





Smoke rises from clashes during a battle with Islamic State militants in south of Mosul, Iraq February 20, 2017. (Photo by Alaa Al-Marjani/Reuters)





Smoke rises after an explosion of an IED planted by Islamic States fighters in south of Mosul, Iraq February 20, 2017. (Photo by Alaa Al-Marjani/Reuters)





A tank of the Iraqi army takes part in an operation against Islamic State militants in south of Mosul, Iraq February 20, 2017. (Photo by Alaa Al-Marjani/Reuters)





Iraqi security forces search men before checking their ID cards in a search for Islamic State fighters in Mosul, Iraq February 16, 2017. Picture taken February 16, 2017. (Photo by Khalid al Mousily/Reuters)





Popular Mobilization Forces (PMF) fire towards Islamic State militants during a battle with Islamic State militants, west of Mosul,Iraq February 20, 2017. (Photo by Reuters/Stringer)





Iraq's Rapid Response forces peer down a tunnel dug by Islamic State militants in a house in Albu Saif, south of Mosul, Iraq February 21, 2017. (Photo by Alaa Al-Marjani/Reuters)





A sniper from Iraq's Federal Police force takes aim at Islamic State positions from the roof of a house on the frontline in Albu Saif, south of Mosul, Iraq February 21, 2017. (Photo by Alaa Al-Marjani/Reuters)





Iraqi rapid response forces walk during a battle with Islamic State militants in village of Albu Saif, south of Mosul, Iraq February 21, 2017. (Photo by Alaa Al-Marjani/Reuters)





A sniper from Iraq's Federal Police force takes aim at Islamic State positions from the roof of a house on the frontline in Albu Saif, south of Mosul, Iraq February 21, 2017. (Photo by Alaa Al-Marjani/Reuters)





A Federal police member stands ontop of the armoured vehicule at a liberated part of Albu Saif village south of Mosul, Iraq February 21, 2017. (Photo by Zohra Bensemra/Reuters)





A Federal police member flashes victory sign in the liberated part of Albu Saif village south of Mosul, Iraq February 21, 2017. (Photo by Zohra Bensemra/Reuters)





Iraqi security forces' tank is pictured in the liberated part of Albu Saif village south of Mosul, Iraq February 21, 2017. (Photo by Zohra Bensemra/Reuters)





Federal police members stand inside a room where they said Islamic State sniper was hiding at a liberated part of Albu Saif village south of Mosul, Iraq February 21, 2017. (Photo by Zohra Bensemra/Reuters)





An Iraqi security forces' member directs a tank in the liberated part of Albu Saif village south of Mosul, Iraq February 21, 2017. (Photo by Zohra Bensemra/Reuters)





Iraqi security forces' members are pictured in the liberated part of Albu Saif village south of Mosul, Iraq February 21, 2017. (Photo by Zohra Bensemra/Reuters)





Members of the Iraqi security forces help a man, who just fled a village controlled by Islamic State fighters, as he arrives in Albu Saif, a village recently retaken by Iraqi military forces, south of Mosul, Iraq February 22, 2017. (Photo by Zohra Bensemra/Reuters)





Blankets are seen inside a tunnel used by Islamic State militants on the outskirts of Albu Saif, which was recently retaken by Iraqi military forces, south of Mosul, Iraq February 22, 2017. (Photo by Zohra Bensemra/Reuters)





A member of the federal police is walking out of the tunnel used by Islamic State militants on the outskirts Albu Saif, which was recently retaken by Iraqi military forces, south of Mosul, Iraq February 22, 2017. (Photo by Zohra Bensemra/Reuters)





A Federal police member helps his comrade to get out a tunnel used by Islamic State militants on the outskirts Albu Saif, which was recently retaken by Iraqi military forces, south of Mosul, Iraq February 22, 2017. (Photo by Zohra Bensemra/Reuters)





Federal police members pose with an Islamic State (IS) flag along a street of Albu Saif which was recaptured from Islamic State, south of Mosul, Iraq February 22, 2017. (Photo by Zohra Bensemra/Reuters)





A boy, who just fled a village controlled by Islamic State fighters cries as he sits with his family inside a bus before heading to the camp at Hammam Ali south of Mosul, Iraq February 22, 2017. (Photo by Zohra Bensemra/Reuters)





Popular Mobilization Forces (PMF) fires towards Islamic State militants during a battle with Islamic State militants, west of Mosul, Iraq February 22, 2017. (Photo by Reuters/Stringer)





Popular Mobilization Forces (PMF) fires towards Islamic State militants during a battle with Islamic State militants, west of Mosul, Iraq February 22, 2017. (Photo by Reuters/Stringer)





Popular Mobilization Forces (PMF) fires towards Islamic State militants during a battle with Islamic State militants, west of Mosul, Iraq February 22, 2017. (Photo by Reuters/Stringer)





Popular Mobilization Forces (PMF) take part during a battle with Islamic State militants, west of Mosul, Iraq February 22, 2017. (Photo by Reuters/Stringer)





Popular Mobilization Forces (PMF) fires towards Islamic State militants during a battle with Islamic State militants, west of Mosul, Iraq February 22, 2017. (Photo by Reuters/Stringer)





Popular Mobilization Forces (PMF) take part during a battle with Islamic State militants, west of Mosul, Iraq February 22, 2017. (Photo by Reuters/Stringer)





A woman, who just fled a village controled by Islamic State militants, checks her daughter as she sits in front of a bus before heading to the camp at Hammam Ali, south of Mosul, Iraq February 22, 2017. (Photo by Zohra Bensemra/Reuters)





Popular Mobilization Forces (PMF) fires towards Islamic State militants during a battle with Islamic State militants, west of Mosul, Iraq February 22, 2017. (Photo by Reuters/Stringer)





Iraqi forces, supported by the Hashed al- Shaabi (Popular Mobilisation) paramilitaries, advance near the village of Husseinyah, south of Mosul on February 20, 2017, during the offensive to retake the western side of Mosul. (Photo by Ahmad Al-Rubaye/AFP Photo)





Two policemen sit atop of their armoured vehicle as Iraqi Federal police deploy after regaining control of the town of Abu Saif, west of Mosul, Iraq, Wednesday, February 22, 2017. (Photo by Khalid Mohammed/AP Photo)