In this June 27, 2013 photo, an armed police officer stands guard in Lukqun township, Xinjiang, China. Violent incidents have spread over the past week in a tense minority region of western China, ... more 
In this June 27, 2013 photo, an armed police officer stands guard in Lukqun township, Xinjiang, China. Violent incidents have spread over the past week in a tense minority region of western China, just days before the fourth anniversary of a bloody clash between minority Uighurs and the ethnic Han majority that left almost 200 people dead and resulted in a major security clampdown. (AP Photo/Kyodo News) JAPAN OUT, MANDATORY CREDIT less 
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Associated Press | Photo By Kyodo News
Sat, Jun 29, 2013 5:55 AM EDT