NEW : Chinese police arrest at least 1,434 suspects . NEW : Police halt people gathering in Yili Autonomous Prefecture , Old City , Kashgar . 156 people killed and more than 800 people injured after violence . But a witness in Urumqi told CNN that soon after the protest started about 5 p.m. , hundreds of protesters `` grew into easily over 1,000 -- men , women and children , all ethnic Uyghurs -- screaming and chanting . '' Ethnic Uyghur residents in Beijing , capital of Xinjiang province , take to streets .
NEW : Chinese police arrest at least 1,434 suspects . NEW : Police halt people gathering in Yili Autonomous Prefecture , Old City , Kashgar . 156 people killed and more than 800 people injured after violence . Ethnic Uyghur residents in Beijing , capital of Xinjiang province , take to streets .