People inspect a damaged site after airstrikes on the rebel held Tariq al-Bab neighbourhood of Aleppo, Syria September 23, 2016. REUTERS/Abdalrhman Ismail - RTSP4CQ
A damaged site is pictured after airstrikes on the rebel held Tariq al-Bab neighbourhood of Aleppo, Syria September 23, 2016. REUTERS/Abdalrhman Ismail - RTSP4CU
People 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 23, 2016. REUTERS/Abdalrhman Ismail - RTSP4EE
People inspect a damaged site after airstrikes on the rebel held al-Qaterji neighbourhood of Aleppo, Syria September 23, 2016. REUTERS/Abdalrhman Ismail - RTSP4E5
People inspect a damaged site after airstrikes on the rebel held al-Qaterji neighbourhood of Aleppo, Syria September 23, 2016. REUTERS/Abdalrhman Ismail - RTSP4E8
A boy inspects a damaged site after airstrikes on the rebel held Tariq al-Bab neighbourhood of Aleppo, Syria September 23, 2016. REUTERS/Abdalrhman Ismail
A man stands over damaged shops after airstrikes on the rebel held al-Qaterji neighbourhood of Aleppo, Syria September 23, 2016. REUTERS/Abdalrhman Ismail - RTSP4E7
People inspect a damaged site after airstrikes on the rebel held Tariq al-Bab neighbourhood of Aleppo, Syria September 23, 2016. REUTERS/Abdalrhman Ismail - RTSP4CV
Syrian army declares offensive on Aleppo
Warplanes launched heavy air strikes on rebel-held areas of Aleppo after the Russian-backed Syrian army declared an offensive to fully capture Syria's biggest city, killing off any hope of reviving a ceasefire.