Syria's regime has been accused of regularly using barrel bombs - crude, explosive devices - on rebel-held areas that are home to civilians.
"The Ramosa road has been shut in the face of civilians trying to leave", said Hamouda, adding that those who tried to escape were killed.
Syrian rebel-groups backed by Turkey say they are clashing with fighters affiliated with Kurdish forces in northern Syria, in a bid to wrestle control of territory from them south of a town they recently seized from Islamic State militants. It has ordered the YPG, which makes up the bulk of the USA -backed Syria Democratic Forces and has been one of the most effective opponents of IS, to withdraw to the east bank of the Euphrates River, which crosses the border at Jarablus.
A Turkish soldier on an armoured personnel carrier waves as they drive from the border back to their base in Karkamis on the Turkish-Syrian border in the southeastern Gaziantep province, Turkey, August 27, 2016.
"Fifteen civilians, among them 11 children, were killed in a barrel bomb attack on the Bab al-Nayrab neighbourhood" in southern Aleppo city, the Britain-based Syrian Observatory for Human Rights monitor said.
The Jarablus Military Council group, part of the Kurdish-backed SDF, said the attack on the village of al-Amarna caused civilian casualties and called it "a risky escalation that threatens the fate of the region". The end of the siege will also free up regime troops to fight rebel forces elsewhere near Damascus.
The fighting pits a North Atlantic Treaty Organisation ally against a USA -backed proxy that is the most effective ground force battling IS in Syria. Turkey has stepped up its attacks on Kurdish groups there.
Syrian rebels opposed to Ankara's incursion said Turkish forces had targeted forces allied to the YPG and no Kurdish forces were in the area. Turkey says the Kurds must withdraw to the east of the nearby Euphrates River.
Turkey is part of the US -led coalition fighting IS, but the airstrikes that began Saturday marked the first time it has targeted Kurdish-led forces in Syria.
The Kurdish Democratic Union Party condemned the attack on the village.
The wake was for some of the children killed in Thursday's attack. Images of doctors treating other children for their burns were posted on social media sites.
Meanwhile, government forces yesterday retook control of Daraya near the Syrian capital after rebels and civilians were evacuated following a four-year siege by regime forces, a military source told AFP.
The shocking footage, a chilling reminder of war's horrors was taken in a hospital and posted online by Syrian news outlet Aleppo Media Center-an anti-government activist group.