Tibet's regional governor said security forces had exercised "massive restraint" to quell anti-China riots last week.
The main violence was in Tibet's capital Lhasa. But then demonstrations flared elsewhere as ethnic Tibetans began demonstrating across eastern China.
There are reports that some people were killed in clashes between protesters and police in Sichuan province. And rallies were also held in Qinghai province, where many ethnic Tibetans live.
In Gansu province, hundreds of protesters marched on government buildings and set fire to Chinese shops.
Tony Cheng is close to Tibet's border to gauge the mood.
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