At least 13 people, among them a child, were killed in Syrian government raids on Daesh-held town of Al-Bab on Monday, a monitor said.
The Syrian Observatory for Human Rights said seven women were among those killed in raids using explosive barrel bombs on the town in northern Aleppo province, France 24 reported.
One of the places hit in Al-Bab was a market selling petrol, the Britain-based monitor said.
More than 40 people were wounded and 10 others were still missing after the raids.
The Local Coordination Committees activist network said charred bodies were recovered from the site of one of the strikes.
On Saturday, 34 people, most of them civilians and among them three children, were killed in similar regime strikes on Al-Bab.
Syria's army regularly targets Al-Bab, which has been held by Daesh since early 2014, but the town has also been hit on occasion by US-led air strikes.