A crowded chess hall in western China becomes a scene of violence when axe-wielding attackers injured four people as the country grapples with a wave of unrest in the region.<br/> <br />State run CCTV says four people were injured in the struggle but their injuries were not life threatening.<br/> <br />Two of the attackers died from serious injuries and a third was arrested.<br/> <br />An unidentified police officer, called the attackers "rats".<br/> <br />He said, "Our defense against violent terrorists is like an iron wall."<br/> <br />China has blamed previous knife and bomb attacks on separatists who seek to establish an independent state called East Turkestan.<br/> <br />The motive for Sunday's attack was not immediately clear.
