Free Tibet says it has identified about 100 accounts carrying false Western names and profile photos.
The monk had cited restrictions imposed on Tibetan monasteries.
Comite de Apoyo al Tibet vows to bring the case to the Constitutional Court and Supreme Court.
He had served two years for taking part in protests challenging China's rule.
He had been jailed for sharing information of anti-China protests.
Tibet’s spiritual leader cites the long-running Israeli-Palestinian dispute as an example.
He had called for Tibetan freedom and the Dalai Lama's return.
They had tried to help a truck driver carrying building supplies to a nearby monastery.
Chinese authorities ban gatherings of more than three families and clamp down on communication links in some Tibetan populated areas.
They had opposed excavations deemed harmful to the environment and sacred sites.
They had protested Chinese copper mining on a sacred mountain.
Police drive her quickly to her home to avoid public celebrations of her release.
He must regularly report to authorities and ask permission to travel away from home.
They had written commentaries on deadly protests in 2008 which had angered the Chinese authorities.
He had led a mission to keep order among rival harvesting groups.
Excavations have begun to threaten sacred sites, villagers say.
They also free a monk after he had served three years for opposing Chinese rule.
Villagers had demonstrated against a Chinese gold mining project.
He had served two consecutive terms for activities opposing Chinese rule.
Chinese authorities ban employees' participation in the ancient Buddhist ceremony.
Security forces fill a town in Gansu as thousands of Tibetans gather.
China has deliberately misrepresented the policy's proposals, exile leader says.
His film on Beijing's harsh rule in Tibetan areas had infuriated Chinese authorities.
Senior monks are also urged to 'obey the law' and 'strike back at separatism.'
Authorities also free a monk jailed for anti-China protests before he serves his full prison term.
He had helped to make a film describing Tibetans' lives under harsh Chinese rule.
Suspected of 'separatist activities,' they have been held without charge for more than a year.
Chinese authorities take him away after a musical concert in a Sichuan county.
Local families fear loss of the only school their children can attend.
But no move has been made yet to forcibly close them down.