Activists say an airstrike by the U.S.-led coalition in the northern Syrian province of Aleppo has killed seven family members.

The Britain-based Syrian Observatory for Human Rights says the airstrike on Sunday in the village of Dali Hassan killed a man, his wife and their five children.

Abu al-Hassan Marea, an activist who is currently in Turkey near the Syrian border, on Monday said he was told by other activists in the area of Dali Hassan that seven members of the same family were killed.

A statement by the U.S.-led Combined Joint Task Force says the coalition struck IS positions in Aleppo province. It says one airstrike hit an IS tactical unit, destroying an ant-aircraft artillery piece.

The coalition has been targeting the IS group in Syria since September.