Syrian state media and opposition activists say government forces and their allies have captured a strategic high point in Aleppo.
The Sana news agency says government troops have taken the hilltop of Bazo on the southern edge of the city.
Sana says rebels shelled government-held neighbourhoods, killing one person and wounding seven.
Fighting has flared after a three-day unilateral ceasefire declared by Moscow ended at the weekend.
16 civilians, including three children, were killed on Monday in air raids and rocket attacks in the province of Idlib.
Activists say seven people, including two women and a child, died in an air strike on the town of Khan Cheikhoun in the south of the region.
Eight other people, including four women and four children, are said to have been killed in attacks on Kafer Takharim in the north of the province.