On the front line of battle against IS in Mosul
Iraqi forces are continuing their battle to dislodge IS militants from Mosul.
Xinhua reporters were given exclusive access to the Old City in western Mosul.
A group of Iraqi Federal Police members were defending a 100-meter-long street, while IS fighters were hiding in the nearby buildings.
Iraqi forces battling IS militants pushed further into western Mosul on Sunday.
But due to the narrow streets and heavily populated neighborhoods, the operation appeared to be a bigger challenge to the Iraqi forces.