The latest outbreak of violence in part of Xinjiang on Monday is not fully explained, partly as it was in Yarkand (in Chinese, Shache) county in Kashgar prefecture, a town far from non-Chinese gaze. Some reports have suggested hundreds were involved, with heavy casualties amongst the attackers.

The BBC has a report, but it is sketchy. It starts with:
Dozens of people have been killed or injured in violence in China's Xinjiang region on Monday, state media say.

Radio Free Asia reports:
The head of the largest mosque in China who has been highly critical of violence by ethnic minority Muslim Uyghurs in the troubled Xinjiang region has been stabbed to death, according to witnesses and local officials.