Syrian rebels gather in rural Aleppo as clashes erupted between the Syrian army and fighters from Hayat Tahrir al-Sham (HTS) and allied factions after the latter launched a surprise attack on the army in the northern province of Aleppo. Some of the clashes, in an area straddling Idlib and Aleppo provinces, are less than 10 kilometres (six miles) southwest of the outskirts of Aleppo city. IMAGES AND SOUNDBITES