The situation in China's riot-torn city of Urumqi is now under control after the deployment of thousands of troops, local Communist officials have said.
The party chief of Urumqi, capital of the Xinjiang region, vowed that all those found guilty of murder during the riots would be put to death.
The unrest between Muslim Uighurs and Han Chinese began on Sunday and has left 156 people dead.
President Hu Jintao cut short his visit to the G8 summit to tackle the crisis.
Fiona Werge reports.