Fatal attack in China's Xinjiang

Three security staff have been stabbed to death in an attack in northwest China's Xinjiang region, the official Xinhua news agency reports.

If confirmed, Tuesday's incident would be the third deadly assault reported in Xinjiang in just over a week.

Assailants jumped off a vehicle passing through a checkpoint in Yamanya town at about 9am (01:00 GMT), attacking the security officers, Xinhua said.

It said one other security officer was injured.

Xinhua said the attack happened near Kashgar, a border city where 16 police officers were killed in an attack last week.

China blamed that incident, which targeted a group of 70 police officers as they jogged outside the building, on Uighur separatists.

At least five people were killed and three injured on Sunday in a series of bombings in the town of Kuqa, in western Xinjiang, according to China's state-run Xinhua news agency.

Dilxat Raxit, spokesman for the German-based World Uighur Congress, said authorities in Kuqa had since detained more than 90 people.

"This includes women," he wrote in an email, quoting local Uighurs he had talked to by telephone. "They have also been mass detentions in adjacent areas."

Xinjiang, a vast area that borders Central Asia, has about 8.3 million ethnic Muslim Uighurs, many of whom express anger at what they say has been decades of repressive Chinese rule.