Major advance claimed in push to seize ISIL's de-facto capital along with the destruction of Euphrates River bridges.
US-backed Syrian fighters have cut the last main road out of Raqqa, the de-facto capital of the Islamic State of Iraq and the Levant (ISIL) group, according to Kurdish military sources and a Britain-based monitor.
If confirmed, it would be a major advance for the Syrian Democratic Forces (SDF), a US-backed mainly Kurdish Syrian group, in its phased push to surround and ultimately capture Raqqa.
The SDF said its forces have cut the highway between Raqqa and Deir Az Zor province.