Syrian opposition fighters say they have managed to take control of several buildings in a suburb of western Aleppo. In this video exclusively obtained by Al Jazeera, they say they have stormed a security unit in the Assad area, in the western side of the city. The unit had been entrusted with protecting to defend the Aleppo Military Academy which hosts the Syrian army’s main base in the area.

Al Jazeera's Mohamed Vall explains.