China on Thursday said the principle for the central government to conduct dialogue with Dalai Lama has not changed, which is that Dalai Lama must give up his stance for Tibet independence and completely stop activities to separate China.

"On such a basis, the door for dialogue is always open", Chinese Foreign Ministry spokesman Qin Gang said at Thursday's regular press conference.

"If Dalai Lama is really concerned about Tibet, we hope he could be aware of the trend, and do more good deeds that are conducive to the benefit of the Tibetan people", Qin added.

The riots, with an intent to damage social stability, destroy the stable and harmonious livelihood of the local people, undermine the Beijing Olympic Games, sabotage the security and territorial integrity of a sovereign country, which once again exposed the secessionist nature of the Dalai Lama, Qin pointed out.

Qin said TV programs have clearly shown that what happened in Lhasa is definitely not peaceful protest but violent crime including killing innocent people, arson, robbing, smashing shops, schools and banks, which have been strongly denounced and firmly opposed by people of all nationalities living in Tibet.

"If they are to be tolerated, are there true laws, human rights, justice? The criminals are bound to be tried and punished in accordance with the law", Qin said.

However the spokesman noted that in the process of dealing with the riots in Lhasa, local autonomous region government and law enforcement personnel exercised great restraint, and did not take with them and use weapons that might kill or injure.

Any country with just and without prejudice will understand and support the handling of the riots by relevant Chinese departments, Qin said.