Q&A: China and the Uighurs

Armed Chinese soldiers march on patrol as a Uighur man crosses the street in Urumqi on July 15, 2009 in north-west China's Xinjiang province

In 2009 Xinjiang saw some of the worst ethnic violence in years

The latest unrest in China's western Xinjiang region follows a long history of discord between China's authorities and the Uighur minority.

Who are the Uighurs?

What are China's concerns about the Uighurs?

What complaints have been made against the Chinese in Xinjiang?

What is the current situation in Xinjiang?

When was the last major outbreak of violence?