On July 5, 2009, violent riots erupted in Ürümqi, the capital of China's Xinjiang Uyghur Autonomous Region, when thousands of Uyghur protesters clashed with police and Han Chinese residents. The unrest began as a demonstration against police handling of a factory brawl that had killed two Uyghur workers in Shaoguan, in Guangdong Province, days earlier. Within hours, the protest transformed into widespread rioting across the city: vehicles were overturned, shops looted, and fires set. By the time authorities restored order through military deployments and curfews, at least 197 people had been killed, with hundreds more injured, making it one of the deadliest ethnic conflicts in modern China.

The underlying tensions had simmered for years beneath Ürümqi's rapid modernization. Since the 1990s, the city had experienced explosive economic development and an influx of Han Chinese migrants seeking opportunity in the resource-rich region. This demographic shift transformed the city's character and intensified competition for jobs and resources. Uyghurs, the region's indigenous Turkic Muslim population, increasingly felt marginalized in their own homeland, facing discrimination in hiring and education while Han Chinese dominated the city's expanding economy. Previous incidents of inter-ethnic friction had grown more frequent, and grievances over cultural erosion and unequal development had accumulated.

The immediate spark came on June 26, 2009, when a brawl at a toy factory in Shaoguan resulted in two Uyghur workers being killed. Official accounts of the incident and police response sparked outrage. On July 5, when Uyghur activists organized a daytime march calling for justice, the demonstration quickly spiraled into riots. Han Chinese vigilante groups mobilized in response, clashing with Uyghur crowds. Over subsequent nights, violence continued, with masked groups conducting retaliatory attacks. The government's heavy-handed response, including internet shutdowns lasting months, mass arrests, and security crackdowns, further inflamed resentment. The Ürümqi riots marked a turning point: they exposed the fragility of ethnic coexistence in Xinjiang and prompted Beijing to intensify security measures in the region for years to come. The riots remain a watershed moment in Xinjiang's modern history, illustrating the consequences of unaddressed ethnic and economic grievances.