Iraqi army gather after the liberation of a village from Islamic State militants, south of Mosul, during an operation to attack Islamic State militants in Mosul, Iraq, October 21, 2016, as toxic smoke is seen over the area after Islamic State militants set fire to a sulphur factory. PHOTO BY REUTERS/Thaier Al-Sudan
By Samia Nakhoul, Michael Georgy and Stephen Kalin
24/10/2016