Airstrikes carried out against a northern Syrian village by U.S.-led coalition forces killed 52 civilians on Friday, according to Britain-based Syrian Observatory for Human Rights.
Among those dead were seven children, the activist group said.
Rami Abdulrahman, who runs the Observatory, told AFP that Syrian opposition fighters and Kurdish fighters were in combat with Daesh militants in a nearby town. "Not a single [Daesh] fighter" was killed in the airstrikes on the village, Abdulrahman told AFP.
U.S.-led coalition airstrikes have supported Kurdish fighters against jihadist groups in Syria's Aleppo province, including in the border town Kobani, near Turkey.
U.S. and Arab forces have been conducting airstrikes against militant groups, including Daesh, in Syria since September. Since then, according to the Observatory, the coalition airstrikes have killed at least 66 civilians and around 2,000 Daesh militants, excluding Friday's death toll.