A man cries as he carries his daughter while walking from an Islamic State-controlled part of Mosul towards Iraqi special forces soldiers during a battle in Mosul, Iraq March 4, 2017. REUTERS/Goran Tomasevic

Iraqi special forces soldiers run across a street during a clashes in Mosul. REUTERS/Goran Tomasevic

Smoke rises after an airstrike, during the battle against Islamic State militants, at the district of al-Mamoun in Mosul.
REUTERS/Alaa Al-Marjani

An Iraqi special forces soldier fires a sniper rifle during a battle with Islamic State militants in Mosul.
REUTERS/Goran Tomasevic

An Iraqi special forces soldiers walks through a house destroyed in an airstrike during a battle with Islamic State militants in Mosul. REUTERS/Goran Tomasevic

An Iraqi special forces soldier throws a hand grenade during a battle with Islamic State militants in Mosul.
REUTERS/Goran Tomasevic

Iraqi special forces soldiers walk on a street during a battle with Islamic State militants in Mosul, Iraq. REUTERS/Goran Tomasevic

An Iraqi special forces soldier shot dead an Islamic State suicide bomber in Mosul, Iraq. REUTERS/Goran Tomasevic

An Iraqi special forces soldier runs across a street during a battle with Islamic State militants in Mosul, Iraq. REUTERS/Goran Tomasevic

Iraqi special forces soldiers walk on a street during a battle with Islamic State militants in Mosul, Iraq. REUTERS/Goran Tomasevic

An Iraqi special forces soldier helps a family carry their child to cross from Islamic State controlled part of Mosul to Iraqi forces controlled part of Mosul, Iraq, March 4, 2017. REUTERS/Goran Tomasevic

An Iraqi special forces soldier checks men for explosive belts as they cross from Islamic State controlled part of Mosul to Iraqi forces controlled part of Mosul, Iraq, March 4, 2017. REUTERS/Goran Tomasevic

An Iraqi special forces soldier fires at a drone operated by Islamic State militants Islamic State militants in Mosul, Iraq, March 4, 2017. REUTERS/Goran Tomasevic