BEIJING (Reuters) - The United States' killing of Islamic State's leader is important progress, but the world should not rest on its laurels in the fight against terrorism, China's special envoy to the Middle East said on Friday.
China has long worried about ethnic Uighurs from China's far heavily Muslim western region of Xinjiang who have travelled clandestinely to Syria and Iraq to fight with Islamist groups there. Islamic State has killed at least one Chinese hostage and militant groups have issued statements threatening to attack China.