Smoke billows as Syrian pro-government forces advance in the Jamiyet al-Ruwad neighbourhood, on the northern outskirts of Deir al-Zor, on September 14, 2017, during their ongoing battle against Daesh (ISIS). Backed by Russian air strikes, the army and allied fighters now hold over half the city, and are working to surround Daesh militants in the remaining parts. / AFP / George OURFALIAN