US-LED coalition air raids have killed around 60 Syrian civilians in Isis-occupied Deir Ezzor province, the official Sana news agency reported yesterday.

Local sources said the strikes hit houses in al-Kamsheh, al-Showeit, al-Doweir and al-Ashara on the Euphrates river south of Deir Ezzor city.

The Operation Inherent Resolve coalition — which includes Britain and other Nato nations — has been accused of frequent massacres of civilians in air strikes, a charge also levelled at the Syrian air force and its Russian allies.

Bombing at the weekend killed 10 people, including children, near Mayadin — just north of yesterday’s attacks — while six were killed and injured 10 in Abu Kamal on the south-eastern border with Iraq.

The Syrian Foreign Ministry has made several formal protests to the UN against the slaughter of its citizens and destruction of its infrastructure.

Yesterday the Kurdish-led Syrian Democratic Forces — which are supported by the US — said they had captured most of the southern districts of the de-facto Isis capital of Raqqa, now under siege.

Meanwhile President Bashar al-Assad lauded the Syrian Arab Army on the 72nd anniversary of its founding, saying it was “writing an epic of glory.”

He said Syria faced a “terrorist enemy the likes of which has never been seen throughout history in terms of treachery, malevolence and hatred.”

He said the extremists were backed by “regional and international parties which have been seeking for years to impose their dominance over the whole area through the gate of Syria.”