Syrian rescuers hand the body of a girl down to civilians on the ground after she was pulled from rubble of a budling following government forces air strikes in the rebel held neighbourhood of Al-Shaar in Aleppo on September 27, 2016. Syria's army took control of a rebel-held district in central Aleppo, after days of heavy air strikes that have killed dozens and sparked allegations of war crimes. (Photo by Karam Al-Masri/AFP Photo)





Stacks of bread are seen at a damaged site after an airstrike in the rebel-held Bab al-Maqam neighbourhood of Aleppo, Syria, September 28, 2016. (Photo by Abdalrhman Ismail/Reuters)





Free Syrian Army members are seen in a village of Cobanbey town in Jarabulus as they carry out an operation within the “Operation Euphrates Shield”, led by the Turkish Army and backed by Syrian National Coalition forces including the Free Syrian Army in Aleppo, Syria, September 23, 2016. (Photo by Emin Sansar/Anadolu Agency/Getty Images)





A front loader removes debris in a damaged site after airstrikes on the rebel held Tariq al-Bab neighbourhood of Aleppo, Syria September 24, 2016. (Photo by Abdalrhman Ismail/Reuters)





Men inspect a hole in the ground filled with water in a damaged site after airstrikes on the rebel held Tariq al-Bab neighbourhood of Aleppo, Syria September 24, 2016. (Photo by Abdalrhman Ismail/Reuters)





Men inspect the damage after an airstrike on the rebel held al-Qaterji neighbourhood of Aleppo, Syria September 25, 2016. (Photo by Abdalrhman Ismail/Reuters)





Smoke rises behind the ancient castle of the rebel-controlled town of Maaret al-Numan after airstrikes in Idlib province, Syria, September 25, 2016. (Photo by Khalil Ashawi/Reuters)





Men evacuate children who survived an airstirke in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria, September 25, 2016. (Photo by Khalil Ashawi/Reuters)





A woman reacts as children are being evacuated from a site hit by an airstrike in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria, September 25, 2016. (Photo by Khalil Ashawi/Reuters)





People dig in the rubble in an ongoing search for survivors at a site hit previously by an airstrike in the rebel-held Tariq al-Bab neighborhood of Aleppo, Syria, September 26, 2016. (Photo by Abdalrhman Ismail/Reuters)





People ride a vehicle past a crater in the rebel-held Qadi Askar neighborhood of Aleppo, Syria, September 26, 2016. (Photo by Abdalrhman Ismail/Reuters)





A rebel fighter of “Al-Sultan Murad” brigade arranges weapons inside a warehouse in the northern Syrian rebel-controlled town of al-Rai, in Aleppo Governorate, Syria, September 26, 2016. (Photo by Khalil Ashawi/Reuters)





A vehicle drives past damaged buildings in the northern Syrian rebel-controlled town of al-Rai, in Aleppo Governorate, Syria, September 26, 2016. (Photo by Khalil Ashawi/Reuters)





One of the warning leaflets dropped by the Syrian army is seen in the rebel held Tariq al-Bab neighbourhood of Aleppo, Syria September 25, 2016. The leaflet reads (top) “This is your destiny!!!” and (bottom L) “who is next” as it depicts pictures of killed rebel commanders and fighters. (Photo by Abdalrhman Ismail/Reuters)





A fighter of the Syrian Islamist rebel group Jabhat Fateh al-Sham rides in an armored vehicle in the 1070 Apartment Project area in southwestern Aleppo, Syria August 5, 2016. (Photo by Ammar Abdullah/Reuters)





A convoy heads to deliver food and humanitarian supplies to the Syrian besieged town of Madaya, near Damascus in this handout picture taken on September 25, 2016 and provided by the World Food Programme on September 27, 2016. (Photo by Hussam Al Saleh/Reuters/WFP)





A still image taken on September 27, 2016 from a drone footage obtained by Reuters shows a cemetery surrounded by damaged buildings in a rebel-held area of Aleppo, Syria. (Photo by Reuters TV)





A still image taken on September 27, 2016 from a drone footage obtained by Reuters shows people standing near craters and damaged buildings in a rebel-held area of Aleppo, Syria. (Photo by Reuters TV)





A still image taken on September 27, 2016 from a drone footage obtained by Reuters shows people standing near craters and damaged buildings in a rebel-held area of Aleppo, Syria. (Photo by Reuters TV)





A still image taken on September 27, 2016 from a drone footage obtained by Reuters shows damaged buildings in a rebel-held area of Aleppo, Syria. (Photo by Reuters TV)





A still image taken on September 27, 2016 from a drone footage obtained by Reuters shows a vehicle driving past damaged buildings in a rebel-held area of Aleppo, Syria. (Photo by Reuters TV)





A still image taken on September 27, 2016 from a drone footage obtained by Reuters shows damaged buildings in a rebel-held area of Aleppo, Syria. (Photo by Reuters TV)





A still image taken on September 27, 2016 from a drone footage obtained by Reuters shows people walking past damaged buildings in a rebel-held area of Aleppo, Syria. (Photo by Reuters TV)





A rebel fighter of the 'Sham Legion' rests inside the institution of religious law building that was used by Islamic State militants in the northern Syrian rebel-controlled town of al-Rai, in Aleppo Governorate, Syria, September 27, 2016. The arabic reads: “Ahrar al-Shariqya (a rebel group), the central force”. (Photo by Khalil Ashawi/Reuters)





Harakat Nour al-Din al-Zenki fighters ride on a pick-up truck in the northern Syrian rebel-controlled town of al-Rai, in Aleppo Governorate, Syria, September 27, 2016. (Photo by Khalil Ashawi/Reuters)





Civilians, who fled from Islamic State-controlled areas, wait at a checkpoint controlled by rebel fighters of the “Sham Legion” in the northern Syrian rebel-controlled town of al-Rai, in Aleppo Governorate, Syria, September 27, 2016. (Photo by Khalil Ashawi/Reuters)





Civil Defense members search for survivors at a site hit by an airstrike in the rebel-held al-Shaar neighbourhood of Aleppo, Syria, September 27, 2016. (Photo by Abdalrhman Ismail/Reuters)





Civil Defense members work at a site hit by an airstrike in the rebel-held al-Shaar neighbourhood of Aleppo, Syria, September 27, 2016. (Photo by Abdalrhman Ismail/Reuters)





A woman sits amid damaged buildings in the rebel-held al-Myassar neighbourhood of Aleppo, Syria, September 27, 2016. (Photo by Abdalrhman Ismail/Reuters)





People look at the sky fearing an airstrike in the rebel-held al-Myassar neighbourhood of Aleppo, Syria, September 27, 2016. (Photo by Abdalrhman Ismail/Reuters)





Civilians walk past damaged buildings in the rebel-held al-Myassar neighbourhood of Aleppo, Syria, September 27, 2016. (Photo by Abdalrhman Ismail/Reuters)





Free Syrian Army fighters walk in the rebel-held al-Myassar neighbourhood of Aleppo, Syria, September 27, 2016. (Photo by Abdalrhman Ismail/Reuters)





A Free Syrian Army fighter writes on a notebook as he sits with his fellow fighter in the rebel-held al-Myassar neighbourhood of Aleppo, Syria, September 27, 2016. (Photo by Abdalrhman Ismail/Reuters)





Rebel fighters of 'Al-Sultan Murad' brigade inspect the identification papers of men who fled from Islamic State-controlled areas, upon their arrival at a checkpoint in the northern Syrian rebel-held town of al-Rai, in Aleppo Governorate, Syria, September 28, 2016. (Photo by Khalil Ashawi/Reuters)





A rebel fighter searches men who fled from Islamic State-controlled areas, upon their arrival at a checkpoint in the northern Syrian rebel-held town of al-Rai, in Aleppo Governorate, Syria, September 28, 2016. (Photo by Khalil Ashawi/Reuters)





Civilians, who fled from Islamic State-controlled areas, gather at a checkpoint controlled by rebel fighters in the northern Syrian rebel-held town of al-Rai, in Aleppo Governorate, Syria, September 28, 2016. (Photo by Khalil Ashawi/Reuters)





Doaa, 10, who fled with her parents from Islamic State-controlled areas, poses while she waits at a checkpoint controlled by rebel fighters in the northern Syrian rebel-held town of al-Rai, in Aleppo Governorate, Syria, September 28, 2016. (Photo by Khalil Ashawi/Reuters)





Civilians, who fled from Islamic State-controlled areas, arrive with their belongings in the northern Syrian rebel-held town of al-Rai, in Aleppo Governorate, Syria, September 28, 2016. (Photo by Khalil Ashawi/Reuters)





A woman, who fled from Islamic State-controlled areas, waits at a checkpoint controlled by rebel fighters in the northern Syrian rebel-held town of al-Rai, in Aleppo Governorate, Syria, September 28, 2016. (Photo by Khalil Ashawi/Reuters)





A boy fills a container with water in the rebel-held besieged town of Zamalka, in the Damascus suburbs, Syria September 28, 2016. (Photo by Bassam Khabieh/Reuters)





Rebel fighters of “Al-Sultan Murad” brigade gather on the outskirts of the northern Syrian town of Shawa, which is controlled by Islamic State militants, in Aleppo Governorate, Syria, September 28, 2016. (Photo by Khalil Ashawi/Reuters)





Rebel fighters of “Al-Sultan Murad” brigade stand on the outskirts of the northern Syrian town of Shawa, which is controlled by Islamic State militants, in Aleppo Governorate, Syria, September 28, 2016. (Photo by Khalil Ashawi/Reuters)





A rebel fighter of “Al-Sultan Murad” brigade prepares his ammunition on the outskirts of the northern Syrian town of Shawa, which is controlled by Islamic State militants, in Aleppo Governorate, Syria, September 28, 2016. (Photo by Khalil Ashawi/Reuters)





Fighters of the Syrian Islamist rebel group Jabhat Fateh al-Sham cheer on a pickup truck after a Russian helicopter was shot down in the north of Syria's rebel-held Idlib province, Syria, August 1, 2016. (Photo by Ammar Abdullah/Reuters)





Free Syrian Army fighters launch a Grad rocket from Halfaya town in Hama province, towards forces loyal to Syria's President Bashar al-Assad stationed in Zein al-Abidin mountain, Syria September 4, 2016. (Photo by Ammar Abdullah/Reuters)





Free Syrian Army fighters rest inside a mechanic shop in Ramousah area southwest of Aleppo, Syria August 2, 2016. Picture taken August 2, 2016. (Photo by Ammar Abdullah/Reuters)





Rescuers and civilians search for survivors under the rubble of a damaged site hit by airstrikes in Idlib, Syria September 29, 2016. (Photo by Ammar Abdullah/Reuters)





Children play with water from a burst water pipe at a site hit yesterday by an air strike in Aleppo's rebel-controlled al-Mashad neighbourhood, Syria, September 30, 2016. (Photo by Abdalrhman Ismail/Reuters)





Rebel fighters rest with their weapons in northern Aleppo countryside, Syria September 30, 2016. (Photo by Khalil Ashawi/Reuters)





Rebel fighters rest with their weapons in northern Aleppo countryside, Syria September 30, 2016. (Photo by Khalil Ashawi/Reuters)





People that fled Islamic State controlled areas arrive at a rebel controlled area in northern Aleppo countryside, Syria September 30, 2016. (Photo by Khalil Ashawi/Reuters)





Rebel fighters rest with their weapons near a watermelon in northern Aleppo countryside, Syria September 30, 2016. (Photo by Khalil Ashawi/Reuters)





A rebel tank is transported in northern Aleppo countryside, Syria September 30, 2016. (Photo by Khalil Ashawi/Reuters)





Rockets are launched from Turkey towards Islamic State controlled areas in northern Aleppo countryside, Syria September 30, 2016. (Photo by Khalil Ashawi/Reuters)





Turkish Army vehicles drive in northern Aleppo countryside, Syria September 29, 2016. Picture taken September 29, 2016. (Photo by Khalil Ashawi/Reuters)





A Turkish soldier (R) walks near a rebel fighter (L) near Turkish Army vehicles in northern Aleppo countryside, Syria September 29, 2016. (Photo by Khalil Ashawi/Reuters)





Turkish Army vehicles drive in northern Aleppo countryside, Syria September 29, 2016. (Photo by Khalil Ashawi/Reuters)





Wounded Syrian children await to receive treatment at a hospital following a reported air strike on the rebel-held northwestern city of Idlib on September 29, 2016. Numerous doctors and nurses and medical facilities have been hit or targeted by missiles or air strikes since the start of the conflict in Syria in March 2011. (Photo by Omar Haj Kadour/AFP Photo)





Syrian men carry injured people amid the rubble of destroyed buildings following a reported air strike on the rebel-held northwestern city of Idlib on September 29, 2016. In a statement the Syrian Observatory for Human Rights said that at least five air strikes hit various areas in the city of Idlib. (Photo by Omar Haj Kadour/AFP Photo)





A Syrian men inspects damage following a strike with cluster bombs by forces loyal to the Syrian government in the rebel-held city of Douma, outskirts of Damasus, 30 September 2016. According to local sources at least four people died in the attack. (Photo by Mohammed Badra/EPA)





A Syrian man inspects damage following a strike with cluster bombs by forces loyal to the Syrian government in the rebel-held city of Douma, September 30, 2016. (Photo by Mohammed Badra/EPA)





A Syrian man carries the body of a girl following a reported airstrike on Kafr Batna, in the rebel-held Eastern Ghouta area, on the outskirts of the capital Damascus, on September 30, 2016. Air raids on several rebel-held towns in the Eastern Ghouta region killed at least 17 people including eight children, the Syrian Observatory for Human Rights monitor said. (Photo by Amer Almohibany/AFP Photo)





A wounded Syrian child looks on from inside a vehicle following a reported airstrike on Kafr Batna, in the rebel-held Eastern Ghouta area, on the outskirts of the capital Damascus, on September 30, 2016. (Photo by Amer Almohibany/AFP Photo)





In this January 29, 2013, file photo, a man walks past dead bodies in front of a river in the neighborhood of Bustan al-Qasr in Aleppo, Syria. More than 130,000 people have died in three years, and more than a quarter of the country's population now live as refugees, either displaced internally or in neighboring countries. An untold number of people have been subjected to the trauma of losing loved ones or witnessing lives blown apart. (Photo by Abdullah al-Yassin/AP Photo)