Scores of people were killed after forces opposed to the government of President Bashar al-Assad overtook a Syrian military base, a monitoring group reported.

Syrian rebel fighters launched their first major offensive in four years against government positions near Aleppo, claiming to have advanced several miles and captured a string of villages.The surprise push saw heavy clashes,

Syria's opposition groups say armed forces launched a large-scale attack on areas controlled by government forces and seized territory in northwestern Syria

The surprise assault occurred around Aleppo, a government-held city and one of the focal points of fighting in Syria’s civil war.

Syrian government and opposition factions say Syrian armed groups have launched a large-scale attack on areas controlled by government forces, setting off fierce clashes for the second day

Syrian rebels have launched a large-scale attack on regime forces in western Aleppo, according to a Free Syrian Army source and local residents.

Syrian rebel fighters launched their first major offensive in four years against government positions near Aleppo, claiming to have advanced several miles and captured a string of villages.

A surprise advance by Syrian rebel groups has caught the Syrian regime by surprise. The regime, backed by Iran and Russia, has lost ground near Aleppo. This is the largest setback for the regime and its Iranian backers in many years.