They are taken away by police with no word given on their present whereabouts or charges made against them.
He is taken into custody while walking in prayer near his monastery, an exile source with local contacts says.
The practice of saving lives improves future rebirths for those taking part, Buddhists believe.
Chinese authorities change course after first telling Tibetan protesters they had no right to block the work.
Poetry writer and social commentator Jo Lobsang Jamyang is jailed for seven and a half years on unspecified charges.
More than 100 villagers have blocked traffic on a roadway, fearing more environmental damage from the mining activities.
A young monk is released after serving a two-year term, and a popular singer is freed after briefly being held for singing a banned song.
She calls out for Tibetan freedom and the Dalai Lama's return after setting herself ablaze outside a monastery.
He is taken away after displaying a photo of exiled spiritual leader the Dalai Lama and calling for Tibetan freedom.
They are taken into custody after trying to mediate in an argument between a Tibetan and a Chinese driver.
The move follows three decades of indiscriminate Chinese logging and ineffective government efforts at reforestation.
He was jailed for resisting political reeducation and refusing to criticize exiled spiritual leader the Dalai Lama.
A second group comes to protest in support and is also taken into custody, sources say.
Four people avoid jail, but face longer term for property seizure at the heart of the dispute over development.
Relatives and friends are warned they will be held responsible if any photos are taken or circulated following his release.
Replacements are hired based on 'backdoor connections' with influential county officials, sources claim.
Chinese law guarantees the freedom of expression, writer Shokjang says in his petition for release from jail.