Rebels supported by Turkish troops have laid siege to the IS-held town for weeks.

A Syrian man gestures in the former rebel-held Salaheddin district in the northern Syrian city of Aleppo on December 23, 2016 after Syrian government forces retook control of the whole embattled city. Photo – AFP A Syrian man gestures in the former rebel-held Salaheddin district in the northern Syrian city of Aleppo on December 23, 2016 after Syrian government forces retook control of the whole embattled city.