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 .
NEW : Chinese police detain at least 1,434 suspects . NEW : Police halt people gathering in Yili Kazak Prefecture , Aksu City , Kashgar . 156 people killed and more than 800 others injured after violence . Ethnic Uyghur residents in Urumqi , capital of Xinjiang region , take to streets .