Syrian army advances amid rebels power struggle

Syrian army advances amid rebels power struggle

Government forces are advancing on rebel positions on the outskirts of Aleppo city.   Activists say opposition fighters could lose the strategic district of Sheikh Najjar. The district is a major transport hub with infrastructure links to Turkey. If Sheikh Najjar falls, rebel supply lines to Aleppo from the NORTH will be cut off.   Al Jazeera's Zeina Khodr reports.