Thousands of troops have been deployed in the city of Urumqi in China's Xinjiang province to quell ethnic unrest that has left 156 people dead.
This was a massive show of force to tackle a situation that has forced President Hu Jintao to fly back from the G8 summit in Italy.
Troops chanted to warn Urumqi residents of their presence as authorities sought to bring the violence under control.
Correspondents say many Han Chinese have been welcoming the troop presence.
Although Urumqi appeared quieter, there were reported flashes of violence - including this attack said to be by Han Chinese on a Uighur man.
Some Uighurs have been erecting barricades to prevent attacks by Han Chinese gangs.
Some angry residents ignored leaflets dropped by helicopters calling for calm and for people to return to their homes.
In addition to the 156 dead and more than 1,000 injured, the riots have caused widespread damage to cars and shops.
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