Following the riots at Apple's FoxConn Chengdu plant in June, engadget [4] is reporting that FoxConn's Taiyuan plant - the scene of earlier strikes over salary disputes back in March - has suffered damage as workers riot. Police are on site to control the crowd and while the motive is not clear, it is apparently unrelated to the recent anti-Japan protests. It appears - based on the clip and photos below - that much damage has been done in the process.
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Source: engadget [4]