A missile attack on a rebel-held neighborhood in the northern Syrian city of Aleppo on Tuesday killed at least 10 people and wounded many others, two activist groups said.
The Local Coordination Committees said the attack on the Maghayer neighborhood killed 10 people, including women and children.
The Britain-based Syrian Observatory for Human Rights said the attack killed 18 people and wounded more than 50. It said the surface-to-surface missile destroyed several houses in the area.
It is not uncommon to have different death tolls in the aftermath of attacks in Syria, where the four-year conflict has killed more than 220,000 people.
Aleppo, Syria's largest city and once its commercial center, has been contested since July 2012.
Meanwhile near the border with Lebanon, Syrian troops backed by Hezbollah fighters captured several neighborhoods in the mountain resort of Zabadani that has been under attack for nearly three weeks.
Hezbollah's Al-Manar television station said troops and Lebanese militants have besieged rebels inside Zabadani from all sides, adding that they inflicted heavy casualties among them. It said dozens of fighters were wounded in the fighting.
The Observatory, which has a network of activists around Syria, said the Syrian government air force has dropped 36 barrel bombs on Zabadani since Tuesday morning. The Observatory reported that dozens of airstrikes have targeted Zabadani since the offensive began on July 3.
The capture of Zabadani would tighten Hezbollah's grip on Syrian territories bordering Lebanon and strengthen the Syrian government's control over of the Beirut-Damascus highway.