The Syrian Army and its allies made sweeping advances in Aleppo overnight, subjecting rebels in the city to the heaviest bombardment in days and pushing them to the brink of collapse, state media and a monitoring group said Monday.

Pro-government forces took Sheik Saeed in the south of the shrinking rebel pocket and Saliheen and Karam al-Daadaa on its eastern flank, a Syrian military source said, describing the advances as "a big collapse in terrorist morale."

Syrian President Bashar Assad now stands ready to take back full control of Aleppo, which was Syria's most populous city before the war and would constitute his greatest prize so far after nearly six years of conflict.