Islamic State launches two suicide attacks on U.S.-backed Syrian rebels

By Suleiman Al-KhalidiAMMAN (Reuters) - Islamic State militants launched two suicide attacks on U.S.-backed Syrian rebels near the border with Iraq, leaving at least 12 dead in the fighting and many wounded, rebel sources said on Sunday.The militants also staged a suicide attack on a convoy of rebel fighters from the Western-backed Osoud al Sharqiya rebel group, who had sent reinforcements from their outpost near the Rukban refugee camp further south west.Islamic State "staged a suicide attack a