IS conflict: Raqqa residents flee looming battle

On the sixth anniversary of the start of the uprising in Syria, much attention is focused on the city of Raqqa, the de-facto capital of the "caliphate" proclaimed by so-called Islamic State.

Thousands of civilians are fleeing the surrounding area ahead of an assault by US-backed Kurdish and Arab fighters that is widely expected to start in the coming weeks.

Produced by Feras Killani and Dina Demrdash