FALLUJAH, June 14, 2016 (Xinhua) -- Heavy smoke rises after the U.S.-led coalition warplanes struck Islamic State (IS) militants in Shuhadad district in Fallujah, some 50 kilometers west of Baghdad, Iraq, on June 14, 2016. At least four militants were killed and seven others wounded during the bombing. (Xinhua/Sami Jawad)