(dpa) - Violence erupted Friday in the centre of Lhasa, the capital of China's Tibet Autonomous Region, as the government deployed paramilitary riot police to control protests initiated by Buddhist monks, witnesses said.
The protestors beat up at least three firefighters and several police officers and tore down a Chinese national flag in the square outside Lhasa's Jokhang temple, the holiest site in the city for Tibetan Buddhists, one witness told Deutsche Presse-Agentur dpa.
The witness said she saw three fire trucks in flames and protestors overturn and set fire to a police car.
Six or seven truckloads of paramilitary police were sent to the square with some police in protective riot gear, she said.
Groups of monks, students and other lay Tibetans ran toward the police and attacked them with sticks and stones, forcing the officers to retreat from the square, she said.
Another witness said a market in central Lhasa was also ablaze on Friday and that he had heard rumours of three deaths in the rioting.
Dark smoke was seen coming from the square outside the Potala Palace, the traditional residence of the exiled Dalai Lama, witnesses said.
A worker at the Jokhang confirmed that a large protest had taken place outside the temple.
"Yes, there was a protest outside this morning," the worker told dpa by telephone.
"Now the Jokhang is closed, so we can't go out and people can't come in," he said.
Later on Friday, the government confirmed that shops were set on fire and that some people were injured during violence in Lhasa on Friday afternoon.
"Witnesses said a number of shops along two main streets ... and Chomsigkang Market were set on fire around 2 pm, sending out heavy smoke," the official Xinhua news agency said.
The agency said all shops near the Jokhang and the nearby Ramogia monastery were closed.
Many people reportedly ran out of the square in front of the Jokhang soon after the fire erupted, it said.
An unspecified number of people were treated for injuries in local hospitals, vehicles were burned, and violence was continuing at 4:30 pm (0830 GMT), the agency said.
Friday's riot came amid reports of escalating unrest in Lhasa and at major monasteries in the region with reports of paramilitary reinforcements sent to control several of the monasteries.
US-based Radio Free Asia reported Friday that two monks were in critical condition after apparently attempting suicide during the protests.
The monks from Drepung monastery on the edge of Lhasa slit their wrists and stabbed themselves in the chest earlier this week, witnesses told the broadcaster.
Monks from Sera monastery in Lhasa have begun a hunger strike as Chinese troops surrounded the three largest monasteries in the city in a government crackdown on the protests, Radio Free Asia reported. The monasteries are now off-limits to tourists.
The protests have since spread to Ganden monastery and to Reting monastery north of the city, the broadcaster said.
The protests apparently began Monday, the 49th anniversary of a Tibetan uprising against Chinese rule that was crushed by troops.
The Dalai Lama, Tibetan Buddhism's highest leader, fled to India after the uprising.