China's premier has said that supporters of the Dalai Lama were behind the riots in Tibet which have caused heavy loss of life.
Wen Jiabao also said the government had acted with "extreme restraint" in putting down the protests.
It comes after Gordon Brown called on China to show restraint after the deadline for protesters to surrender passed.
The Prime Minister insisted that violent clashes on the streets of the disputed territory must stop, and urged Beijing to resolve the situation through "dialogue".
His comments came after days of bloody unrest in the capital, Lhasa, which are feared to have left scores dead.
Pro-independence demonstrators made their anger known in London, with rallies outside the Chinese Embassy and Downing Street.
Around 200 exiles and campaigners gathered at the embassy, waving flags and chanting "Stop the killing" and "Long live the Dalai Lama".
The recent trouble in Tibet began last Monday, coinciding with the 49th anniversary of the 1959 uprising against Chinese rule.
Protests were initially led by Buddhist monks, but have since escalated to include large numbers of ordinary Tibetans.
According to the Tibetan Government in Exile, around 80 people have been killed so far, but the official Chinese figure is 13.
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