Muslim extremists from China's far western region of Xinjiang have gone to the Middle East for training and some may have crossed into Iraq to participate in the conflict there, China's special envoy for the Middle East said on Monday.
China has repeatedly expressed concern about the upsurge in violence in Iraq and the march of the Islamic State of Iraq and the Levant (ISIL), which has seized much of the north of the country as Baghdad's forces there collapsed.
ISIL has renamed itself the Islamic State and proclaimed the establishment of a caliphate on land it has captured in Syria and Iraq.
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