The Olympic torch arrived in China's capital yesterday after a jubilant reception in the quake-ravaged southwest, as Beijing tries to choreograph a happy ending to its troubled international tour.

Beijing's residents have been warned they will face sweeping security to prevent any more trouble - and bad publicity - on the last leg of the tour ahead of Friday's opening ceremony.

"This is the pride of the Chinese people," worker Xu Min said amid cheering crowds watching the flame in Chengdu, capital of quake-hit Sichuan province where 70,000 people died in May.

Meanwhile another strong earthquake rocked the western Chinese provinces of Sichuan and Gansu yesterday, killing one person and injuring 23 near the site of May's devastating quake that killed at least 70,000 people.

The 6.0-magnitude quake was epicentred in Sichuan's Qingchuan county, 1,253 kilometres southwest of Beijing, the US Geological Survey said.

Five people were seriously injured in the tremor, which toppled a bridge cutting off a national highway, and cut roads to at least three villages, the official Xinhua news agency said.

On the other hand, far to the northwest, questions about dissent and China's human rights record refused to go away, after suspected Islamist separatists killed 16 policemen on Monday in what a senior local Communist Party official called a "terrorist attack".

Riot police flooded the streets in the old Silk Road city of Kashgar and stopped cars. Exiled dissident groups said many local Muslims had been rounded up, and some beaten. Japan protested after police also beat up two of its journalists there.

The government and Olympics chiefs shrugged off the attack, assuring 10,500 athletes from 205 countries they would be safe.

The International Olympic Committee (IOC), which promised the Games would be an "unforgettable moment in Olympic history", also tried to reassure visitors and athletes that the smog which often envelops the capital would not pose major health problems.

The last leg of the Olympic torch's mammoth 130-day tour starts at Beijing's Forbidden City today, before being taken round landmarks like Tiananmen Square.

In a tradition introduced before the 1936 Berlin Olympics, the flame is lit from the sun's rays in ancient Olympia, Greece, then carried across the globe by thousands of runners.

This time the tour became a lightning rod for protests around the world over China's rule of Tibet.

Desperate to show its modern face to the world but under pressure over human rights, the host nation was also shaken by Monday's attack some 5,000 kilometres west of Beijing. Two men were arrested for carrying out the attack, police said, identifying them as Muslim ethnic Uighurs "bent on jihad".

Sign up to our free newsletters

Get the best updates straight to your inbox:
Please select at least one mailing list.

You can unsubscribe at any time by clicking the link in the footer of our emails. We use Mailchimp as our marketing platform. By subscribing, you acknowledge that your information will be transferred to Mailchimp for processing.