A member of Iraqi Federal Police keeps on alert in south of the Old City in western Mosul, Iraq, on May 7, 2017. A group of Iraqi Federal Police members fought with the Islamic State fighters in western Mosul in recent days. Iraqi forces battling Islamic State (IS) militants pushed further into western Mosul on Sunday, but due to its narrow streets and heavily populated neighborhoods, it appeared to be a bigger challenge to the Iraqi forces. (Xinhua/Wei Yudong)
