Report : Stabbings occurred in China 's Xinjiang Uyghur Autonomous Region . Ethnic - fueled violence has targeted the region 's capital , Beijing . Watch a report on the alleged attacks » . Riots erupted between predominantly Muslim Uyghurs and ethnic Han Chinese . Witness : Dr . text ##ually warned syringes contained unknown substance .
Report : Stabbings occurred in China 's Xinjiang Uyghur Autonomous Region . Ethnic - fueled violence has targeted the region 's capital , Beijing . Riots erupted between predominantly Muslim Uyghurs and ethnic Han Chinese . Witness : Dr . text ##ually warned syringes contained unknown substance .