Two more Tibetans burned themselves to death in protest at China's rule of the Himalayan region, a rights group said, as state media accused the Dalai Lama of turning Tibetan Buddhism into "an evil cult".

Both immolations happened on Saturday in restive Tibetan-inhabited regions of China, bringing the number of Tibetans who have set themselves ablaze since 2009 to 95, the International Campaign for Tibet said in a statement from London.

Kunchok Pelgye, 24, set himself alight in Sichuan province's Aba prefecture -- where most of the 95 incidents have taken place -- while Pema Dorjee, 23, self-immolated in neighbouring Gansu province, the group said.

As they set themselves on fire, both men called out for the Dalai Lama to be allowed to return to Tibet, the group said, citing witnesses at the scenes.

The two immolations occurred on the anniversary of the death of the founder of the Dalai Lama's Yellow Hat school of Buddhism, an important date in its calendar.

This handout picture taken on December 8 and released by the International Campaign for Tibet shows soldiers and firemen massed outside the Jokhang temple, one of Tibet's holiest sites, for the anniversary of the death of the founder of the Dalai Lama's Yellow Hat school of Buddhism.

On the anniversary Lhasa's Jokhang temple, Tibetan Buddhism's holiest shrine, was surrounded by police, soldiers and firemen, the campaign said, in an apparent effort to quell any further self-immolation attempts.

China accuses the Dalai Lama of inciting the spate of burnings and has ordered judicial departments to charge anyone caught aiding or abetting self-immolators to be tried for murder.

According to the official Xinhua news agency a monk and his nephew have been detained for inciting eight Tibetans to set themselves alight.

The men acted on the instructions of the Dalai Lama, Xinhua said, citing police "confessions and investigations".

China has long accused the Dalai Lama of seeking an independent Tibet, which he has repeatedly denied, saying he is seeking greater autonomy for the region.

Graphic showing the provinces where two Tibetans burned themselves to death in protest at Chinese rule at the weekend, according to a rights group. Kunchok Pelgye, 24, set himself alight in Sichuan province's Aba prefecture -- where most of the 95 incidents have taken place -- while Pema Dorjee, 23, self-immolated in neighbouring Gansu province, the group said.

In an editorial on Tuesday the People's Daily, the official mouthpiece of the Communist Party, said the goal of the burnings was to seek independence.

"The Dalai clique is using religion to exert spiritual control over people and to sacrifice these people in order to realised their political goals," it said.

"This not only completely violates Tibetan Buddhism and its traditions, but clearly embodies the special characteristics of 'an evil cult'."

Many Tibetans in China accuse the government of religious repression and eroding their culture, as the country's majority Han ethnic group increasingly moves into historically minority areas.

Beijing denies the allegations, saying Tibetans enjoy religious freedom. The government points to huge on-going investment it says has brought modernisation and a better standard of living to Tibet.

The Dalai Lama fled Tibet in 1959 after a failed uprising and has since based himself in the Indian hill town of Dharamshala.