One hundred and forty people were killed and 828 were injured in China's Xinjiang region following rioting by members of a Muslim ethnic group and a police crackdown on their demonstrations, Chinese state media said Monday. The official toll makes the unrest the deadliest single incident of unrest in Xinjiang in recent decades. The violence in Urumqi apparently happened after a peaceful protest Sunday of about 1,000 to 3,000 people spun out of control, with rioters overturning barricades, attacking vehicles and houses, and clashing with police. Wu Nong, director of the news office of the Xinjiang provincial government, said more than 260 vehicles were attacked or set on fire and 203 houses were damaged. The official Xinhua News Agency also said 140 people died and that the death toll "was still climbing."