Chinese authorities have said they are confident of a safe Olympic Games, despite a terrorist attack in the Xinjiang region which killed 16 policemen.
The strike came four days before the Olympics’ opening ceremony in Beijing and is the worst in China for more than a decade.
Two assailants drove a truck and threw grenades at a border post before attacking the policemen with knives.
The attack took place in Kashgar, near the Tajikistan border. The region is home to many Uighur people resentful of Chinese control.
Security in Kashgar has been stepped up, with officials linking the terrorist strike to a separatist Islamic group.
The militant faction, which has waged a campaign of violence against Chinese rule, has vowed to disrupt the Games.
As yet, there has been no claim of responsibility but Chinese authorities say they are confident heavy security will ensure safety at the Olympics.
The United States has vigorously condemned the attacks in the Chinese province.