In this photo released by China's Xinhua News Agency, police officers stand guard near a blast site which has been cordoned off, in downtown Urumqi, capital of northwest China's Xinjiang Uygur Autonomous Region, Thursday, May 22, 2014. Attackers crashed a pair of vehicles and tossed explosives in an attack Thursday near an open air market in the capital of China's volatile northwestern region of Xinjiang, leaving an unknown number of people dead and injured, state media reported.
In this photo released by China's Xinhua News Agency, police officers stand guard near a blast site which has been cordoned off, in downtown Urumqi, capital of northwest China's Xinjiang Uygur Autonomous Region, Thursday, May 22, 2014. Attackers crashed a pair of vehicles and tossed explosives in an attack Thursday near an open air market in the capital of China's volatile northwestern region of Xinjiang, leaving an unknown number of people dead and injured, state media reported. ASSOCIATED PRESS
In this photo released by China's Xinhua News Agency, police officers stand guard near a blast site which has been cordoned off, in downtown Urumqi, capital of northwest China's Xinjiang Uygur Autonomous Region, Thursday, May 22, 2014. Attackers crashed a pair of vehicles and tossed explosives in an attack Thursday near an open air market in the capital of China's volatile northwestern region of Xinjiang, leaving an unknown number of people dead and injured, state media reported. ASSOCIATED PRESS

Deadly attack in western China suggests new tactics for separatists

May 22, 2014 02:38 PM

UPDATED May 22, 2014 02:49 PM

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