Reports on Saturday said the strike targeted the village of Hanida, some 30 kilometers west of Raqqah and located on the southern bank of the Euphrates River.
The so-called Syrian Observatory for Human Rights, a group based in Britain that mainly advocates anti-government militants in Syria, said the attack was carried out by warplanes of the US-led coalition, which claims to be fighting the Daesh Takfiri terrorists in Iraq and Syria.
Other reports said US aircraft dropped the bombs and at least 20 people were killed in the attack. There was no comment either from US military officials or from military sources in the coalition.
The United States and Western and regional allies have been involved in a series of coordinated airstrikes against purported positions of Daesh in the territories of Iraq and Syria over the past three years. The campaign in Syria lacks any authorization from the Syrian government. The coalition aims to finally retake Raqqah, a city that Daesh holds as its de facto capital in Syria.