Syrian civil defence volunteers, known as the White Helmets, work around destroyed buildings following reported air strikes on the rebel-held town of Douma, on the eastern outskirts of the capital Damascus, on October 5, 2016. The White Helmets are a prominent Syrian group of emergency responders mainly made of volunteers. (Photo by Sameer Al-Doum/AFP Photo)





Syrian civil defence volunteers, known as the White Helmets, walk amidst the debris following a reported air strike by Syrian government forces in the rebel-held neighbourhood of Sukkari in the northern city of Aleppo on June 3, 2016. Regime air strikes killed dozens of civilians in the Syrian city of Aleppo and nearby areas as the UN Security Council prepared to discuss emergency aid drops to besieged areas. (Photo by Thaer Mohammed/AFP Photo)





A civil defense member carries out a search and rescue operation over the wreckage of collapsed buildings after the airstrike belonging to Syrian army targeted at opposition controlled in Bab al-Nairab district in Aleppo, Syria on August 27, 2016. It is reported that many people killed and wounded after the airstrike. (Photo by Ibrahim Ebu Leys/Anadolu Agency/Getty Images)





A rebel fighter takes away a flag that belonged to Islamic State militants in Akhtarin village, after rebel fighters advanced in the area, in northern Aleppo Governorate, Syria, October 7, 2016. (Photo by Khalil Ashawi/Reuters)





A man runs near a burning car after an airstrike in the rebel held Douma neighbourhood of Damascus, Syria October 3, 2016. (Photo by Bassam Khabieh/Reuters)





Boys walk near damaged buildings in the rebel-held besieged town of Zamalka, in the Damascus suburbs, Syria October 3, 2016. (Photo by Bassam Khabieh/Reuters)





A boy herds goats near damaged buildings in the rebel-held besieged town of Zamalka, in the Damascus suburbs, Syria October 3, 2016. (Photo by Bassam Khabieh/Reuters)





A man stands on the balcony of a damaged building after an airstrike yesterday in the rebel held Douma neighbourhood of Damascus, Syria October 4, 2016. (Photo by Bassam Khabieh/Reuters)





A boy stands near a damaged building after an airstrike yesterday in the rebel held Douma neighbourhood of Damascus, Syria October 4, 2016. (Photo by Bassam Khabieh/Reuters)





A boy walks near Douma grand mosque in the rebel held Douma neighbourhood of Damascus, Syria October 4, 2016. (Photo by Bassam Khabieh/Reuters)





A child eats a corn comb while carrying a bag of bread in a damaged site after an airstrike yesterday in the rebel held Douma neighbourhood of Damascus, Syria October 4, 2016. (Photo by Bassam Khabieh/Reuters)





A man carries a corn comb in a damaged site after an airstrike yesterday in the rebel held Douma neighbourhood of Damascus, Syria October 4, 2016. (Photo by Bassam Khabieh/Reuters)





A boy shows off his wound near a damaged building after an airstrike yesterday in the rebel held Douma neighbourhood of Damascus, Syria October 4, 2016. (Photo by Bassam Khabieh/Reuters)





People drive a motorcycle near a damaged building in al-Rai town, northern Aleppo countryside, Syria October 4, 2016. (Photo by Khalil Ashawi/Reuters)





A rebel fighter climbs with his weapon on a ladder in Kafr-Brisha village, northern Aleppo countryside, Syria October 4, 2016. (Photo by Khalil Ashawi/Reuters)





A rebel fighter stands on a lookout point in Kafr-Brisha village, northern Aleppo countryside, Syria October 4, 2016. (Photo by Khalil Ashawi/Reuters)





A rebel fighter climbs with his weapon on a ladder in Kafr-Brisha village, northern Aleppo countryside, Syria October 4, 2016. (Photo by Khalil Ashawi/Reuters)





People that fled Islamic State contolled areas travel on the back of a vehicle in al-Rai town, northern Aleppo countryside, Syria October 4, 2016. (Photo by Khalil Ashawi/Reuters)





People that fled Islamic State contolled areas travel on the back of a vehicle in al-Rai town, northern Aleppo countryside, Syria October 4, 2016. (Photo by Khalil Ashawi/Reuters)





Free Syrian Army fighters walk past a Turkish tank mounted on a transporter in the northern Syrian rebel-held town of al-Rai, in Aleppo Governorate, Syria, October 5, 2016. (Photo by Khalil Ashawi/Reuters)





Rebel fighters ride on a pick-up truck along a street in the northern Syrian rebel-held town of al-Rai, in Aleppo Governorate, Syria, October 5, 2016. (Photo by Khalil Ashawi/Reuters)





Smoke rises from Bustan al-Basha neighborhood of Aleppo, Syria, October 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





People walk past damaged buildings in the rebel-held Tariq al-Bab neighbourhood of Aleppo, Syria, October 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





The sun sets over Aleppo as seen from rebel-held part of the city, Syria October 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





Smoke rises from Bustan al-Basha neighborhood of Aleppo, Syria, October 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





People walk near an over-crowded graveyard in the rebel held al-Shaar neighbourhood of Aleppo, Syria October 6, 2016. (Photo by Abdalrhman Ismail/Reuters)





A participant covered in coloured powder gestures as she stands near a Syrian army soldier during “I Love Damascus” marathon at Umayyad Square in Damascus, Syria October 7, 2016. (Photo by Omar Sanadiki/Reuters)





Participants celebrate during “I Love Damascus” marathon at Umayyad Square in Damascus, Syria October 7, 2016. (Photo by Omar Sanadiki/Reuters)





Participants walk towards Umayyad Square during “I Love Damascus” marathon in Damascus, Syria October 7, 2016. (Photo by Omar Sanadiki/Reuters)





Participants throw coloured powder as they celebrate during “I Love Damascus” marathon at Umayyad Square in Damascus, Syria October 7, 2016. (Photo by Omar Sanadiki/Reuters)





Participants celebrate during “I Love Damascus” marathon at Umayyad Square in Damascus, Syria October 7, 2016. (Photo by Omar Sanadiki/Reuters)





A Syrian army soldier covered in coloured powder stands guard during “I Love Damascus” marathon at Umayyad Square in Damascus, Syria October 7, 2016. (Photo by Omar Sanadiki/Reuters)





A boy arranges plant seeds in the beseiged rebel held area of Aleppo, Syria October 8, 2016. (Photo by Abdalrhman Ismail/Reuters)





Fuel containers are sold in the beseiged rebel held area of Aleppo, Syria October 8, 2016. (Photo by Abdalrhman Ismail/Reuters)





Men drink a traditional liquorice drink in the beseiged rebel held area of Aleppo, Syria October 8, 2016. (Photo by Abdalrhman Ismail/Reuters)





A man makes bread in the beseiged rebel held area of Aleppo, Syria October 8, 2016. (Photo by Abdalrhman Ismail/Reuters)





A man carves ice to put with a traditional Liquorice drink in the rebel held beseiged area of Aleppo, Syria October 8, 2016. (Photo by Abdalrhman Ismail/Reuters)





An over-crowded graveyard is pictured in the rebel held al-Shaar neighbourhood of Aleppo, Syria October 6, 2016. (Photo by Abdalrhman Ismail/Reuters)





A Syrian pro-government soldier carries home-made bombs as they advance in Aleppo's rebel-held Bustan al-Basha neighbourhood on October 6, 2016. “Syrian regime forces advanced from the city centre north into (rebel-held) Bustan al-Basha, and seized a large athletic complex there”, the UK-based Syrian Observatory for Human Rights said. This was the first time the regime had entered the district since 2013 and there had been fierce clashes, they added. This was the first time the regime had entered the district since 2013 and there had been fierce clashes, he added. (Photo by George Ourfalian/AFP Photo)