Thirty one people have been killed in the explosive attack in the capital of China's Xinjiang region, state news agency Xinhua News reports.
Social media users have been used Weibo to post images from the scene. There has been no official death toll or confirmation from the Chinese authorities.
This Weibo photo shows the explosion scene in the capital area of China's Xinjiang region. http://t.co/dEsBkKEJYu
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"How dare he make such horrendous statements over the airwaves."