[4Tran]

The BBC is probably much more reliable than Yomiuri:

Dozens of people are feared dead after mass protests against Chinese rule in Tibet. It is the biggest challenge to China's rule in Tibet since 1989.

What sparked the protests?

Buddhist monks marched from monasteries in and around Lhasa on 10 March to mark the 49th anniversary of a Tibetan uprising against Chinese rule.

According to reports, security forces arrested some of the marchers and the following day, more monks marched through the streets to appeal for their colleagues to be freed.

As news of the unrest spread, Tibetan minority populations in other areas in China began to stage demonstrations.

By the end of the week, protests had broken out in a number of foreign countries - particularly in Nepal and India.

There were also confirmed reports of mass rioting on the streets of Lhasa.

At this point, economic and social grievances came to the fore, and members of the general population became involved in the monks' protests.

Many Tibetans are angry at the increasing numbers of Han Chinese migrants arriving in the region, accusing them of taking the best jobs.

Tibetans feel they have been left behind by the economic boom which coastal provinces have enjoyed, yet they are suffering from China's accelerating inflation.

And reports of a mosque being burnt to the ground could also heighten tensions between Tibetans and the Hui Muslim minority population.