Losing control?
It is also reported to be impossible to access the internet in that part of China at the moment.
Throughout the morning in China, the official news agency Xinhua offered several updates, revising upwards the estimate of the number killed and injured.
Much of the information came from a news conference in the regional capital given by local officials.
A serious outbreak of ethnic violence like this is, of course, a concern for the authorities.
One of the sparks was said to have been an incident last month in southern China in which two Uighurs were killed during a clash between workers from the Uighur and Han communities.
Xinjiang is, however, a remote part of the country, some 3,000 km ( 1875 miles) from Beijing, so the violence there is unlikely to have much of an impact elsewhere in the country unless there is a sense that in Urumqi the authorities are losing control.
--- BBC NEWS

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从来没有谁真正干净过,因为一开始你就污迹斑驳...