An opposition fighter from the Sham brigade walks holding a rocket-propelled grenade in a trench on the front line during the ongoing clashes with government forces in the village of Teir Maalah in Syria's central Homs province on December 5, 2016. (Photo by Mahmoud Taha/AFP Photo)





Syrian pro-government forces stand next to the wreckage of an ambulance outside a makeshift hospital which was used by rebel fighters in Aleppo's al-Sakhur neighbourhood, on December 6, 2016, a few days after the area was retaken by the government troops. (Photo by George Ourfalian/AFP Photo)





A Russian soldier drives a military vehicle in Aleppo, Syria December 4, 2016. (Photo by Omar Sanadiki/Reuters)





Residents look at Russian vehicles in Aleppo, Syria December 4, 2016. (Photo by Omar Sanadiki/Reuters)





Russian soldiers stand near their vehicles in Aleppo, Syria December 4, 2016. (Photo by Omar Sanadiki/Reuters)





Russian soldiers stand near their vehicles in Aleppo, Syria December 4, 2016. (Photo by Omar Sanadiki/Reuters)





Children that came back with their families to check their homes ride a pick-up truck near damaged buildings in goverment controlled Hanono housing district in Aleppo, Syria December 4, 2016. (Photo by Omar Sanadiki/Reuters)





A Russian soldier stands near a bus carrying people who came back to inspect their homes in government controlled Hanono housing district in Aleppo, Syria December 4, 2016. (Photo by Omar Sanadiki/Reuters)





Women walk near damaged buildings in government controlled Hanono housing district in Aleppo, Syria December 4, 2016. The calligraphy on the wall reads “The Islamic Caliphate is Shining light”. (Photo by Omar Sanadiki/Reuters)





People ride a pick-up truck with a Syrian National flag in goverment controlled Hanono housing district in Aleppo, Syria December 4, 2016. (Photo by Omar Sanadiki/Reuters)





A Russian soldier walks to a military vehicle in goverment controlled Hanono housing district in Aleppo, Syria December 4, 2016. (Photo by Omar Sanadiki/Reuters)





People that came back to inspect their homes walk near goverment soldiers in goverment controlled Hanono housing district in Aleppo, Syria December 4, 2016. (Photo by Omar Sanadiki/Reuters)





A man that came back to inspect his home carries his belongings near damaged buildings in goverment controlled Hanono housing district in Aleppo, Syria December 4, 2016. (Photo by Omar Sanadiki/Reuters)





Pro-Syrian government soldiers shoot a weapon on the back of a vehicle near damaged buildings, in al-Izaa area in Aleppo, Syria December 5, 2016. (Photo by Omar Sanadiki/Reuters)





Smoke rises near Pro-Syrian government soldiers after shelling, in al-Izaa area in Aleppo, Syria December 5, 2016. (Photo by Omar Sanadiki/Reuters)





Civil Defence members look for survivors under rubble of damaged buildings after air strikes on the northern neighbourhood of Idlib city, Syria December 5, 2016. (Photo by Ammar Abdullah/Reuters)





Smoke rises from a car after strikes on the rebel-held besieged al-Zebdieh district, in Aleppo Syria December 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





A woman stands near the blood stained ground after strikes on rebel-held besieged al-Zebdieh district, in Aleppo Syria December 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





People carry their belongings as they flee the Kadi Askar area towards Bustan al-Qasr neighbourhood, in rebel-held besieged Kadi Askar area of Aleppo, Syria December 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





Men wash the blood stained ground after strikes on rebel-held besieged al-Zebdieh district, in Aleppo Syria December 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





People ride on a pick-up truck as they flee deeper into the remaining rebel-held areas of Aleppo, Syria December 7, 2016. (Photo by Abdalrhman Ismail/Reuters)





Civilians carry their belongings as they flee deeper into the remaining rebel-held areas of Aleppo, Syria December 7, 2016. (Photo by Abdalrhman Ismail/Reuters)





Civilians carry their belongings as they flee deeper into the remaining rebel-held areas of Aleppo, Syria December 7, 2016. (Photo by Abdalrhman Ismail/Reuters)





Rebel fighters ride on a pick-up truck mounted with a weapon as they drive in a rebel-held area of Aleppo, Syria December 7, 2016. (Photo by Abdalrhman Ismail/Reuters)





Men ride a tricycle as they flee deeper into the remaining rebel-held areas of Aleppo, Syria December 7, 2016. (Photo by Abdalrhman Ismail/Reuters)





An injured woman walks at a site hit by an airstrike in the rebel-held al-Ansari neighbourhood of Aleppo, Syria December 7, 2016. (Photo by Abdalrhman Ismail/Reuters)





Syrian pro-government troops hold a position in Aleppo's eastern Karm al-Jabal neighborhood as they advance towards al-Shaar neighbourhood on December 5, 2016 during their offensive to retake Syria's second city. The Syrian Observatory for Human Rights said the advances of the Syrian and allied forces left the large Shaar neighbourhood encircled by government forces and in danger of falling from rebel control. With the capture of Shaar, the army would hold 70 percent of east Aleppo, four years after rebels first seized it. (Photo by George Ourfalian/AFP Photo)





A ball of fire rises following a Syrian government air strike that hit rebel positions in the eastern neighborhoods of Aleppo, Syria, Monday, December 5, 2016. The government seized large swaths of the Aleppo enclave under rebel control since 2012 in the offensive that began last week. The fighting was most intense Monday near the dividing line between east and west Aleppo as government and allied troops push their way from the eastern flank, reaching within less than a kilometer (half a mile) from the citadel that anchors the center of the city. (Photo by Hassan Ammar/AP Photo)





In this Sunday, December 4, 2016 photo, Nisrin Malaji returns to her looted home in the Hanano district of eastern Aleppo, Syria. It's a painful homecoming shared by hundreds of Syrians who are returning to areas devastated by years of war and then retaken from the city's embattled rebels in a recent government offensive. More than 30,000 people have fled Aleppo since the latest government offensive began last month, joining the more than 10 million Syrians – nearly half the population – who have fled their homes since the conflict began. (Photo by Hassan Ammar/AP Photo)





Syrian army soldiers fire their weapons during a battle with rebel fighters at the Ramouseh front line, east of Aleppo, Syria, Monday, December 5, 2016. (Photo by Hassan Ammar/AP Photo)





Syrian army soldiers fire their weapons during a battle with rebels at the Ramouseh front line, east of Aleppo, Syria, Monday, December 5, 2016. (Photo by Hassan Ammar/AP Photo)





A Russian soldier checks a burned medical tent after rebels launched a mortar shell at a field hospital in west Aleppo, Syria, Monday, December 5, 2016. Rebel shelling of the government-held part of Syria's Aleppo city Monday killed a Russian female nurse in a makeshift Russian hospital in the city, a Russian officer there said. (Photo by Hassan Ammar/AP Photo)





A Syrian army soldier places a Syrian national flag during a battle with rebel fighters at the Ramouseh front line, east of Aleppo, Syria, December 5, 2016. The fighting was most intense Monday near the dividing line between east and west Aleppo as government and allied troops push their way from the eastern flank. (Photo by Hassan Ammar/AP Photo)





Syrian government troops patrol the newly captured al- Sakhour neighbourhood in the eastern part of the northern city of Aleppo on December 7, 2016 Rebels in Aleppo called for a five- day truce and the evacuation of civilians Wednesday after losing more than three quarters of their territory including the Old City to a Syrian army offensive. (Photo by George Ourfalian/AFP Photo)





A general view shows destruction in the al- Shaar neighbourhood after government forces took control of the area in the eastern part of the northern city of Aleppo on December 7, 2016. (Photo by George Ourfalian/AFP Photo)





Syrian residents fleeing the violence in the eastern rebel- held parts of Aleppo evacuate from their neighbourhoods through the Bab al- Hadid district after it was seized by the government forces, on December 7, 2016. In the face of a blistering assault by forces loyal to President Bashar al- Assad, the rebels were reported to have retreated from all of Aleppo' s Old City, the latest in a string of territorial losses. (Photo by George Ourfalian/AFP Photo)





Syrian residents fleeing the violence in the eastern rebel- held parts of Aleppo evacuate from their neighbourhoods through the Bab al- Hadid district after it was seized by the government forces, on December 7, 2016. (Photo by George Ourfalian/AFP Photo)