Lodroe Gyatso is believed to have shouted political slogans in front of Lhasa's Potala Palace, sources say.
The conference is a further bid by Tibetans to protect their culture.
Sources say confiscated passports have not been reissued, despite a an earlier pledge by authorities.
Sudden recall order affects hundreds who traveled to India to hear the Dalai Lama’s teachings.
It urges the European Union's member states to raise the issue of human rights violations in all its talks with China.
Inspired by the teachings of a revered religious leader, they vow to give up smoking, gambling, and alcohol.
Hundreds of families are moved from traditional grazing lands now worked by Chinese mines.
Tashi Wangchuk faces a Chinese court in what rights group Amnesty International calls a 'sham trial' on trumped-up charges.
He had spoken to an India-based Tibetan advocacy group about restrictions imposed on his family.
Lhamo Tso, the wife of Tibetan filmmaker Dhondup Wangchen, shares her feelings following his successful escape from Tibet and reunion with his family.
Dhondup Wangchen arrives safely in San Francisco after escaping a restricted life in Tibet.
Already in poor health before his arrest, he was tortured and has been made to perform hard labor in prison.
His father has been detained in Barkham county, where authorities complain of expenses incurred by protester's stay in hospital.
Unidentified victim near Kirti Monastery represents 152nd self-immolation case inside Tibet since 2009.
He had taken part in protests for Tibetan freedom and suffered beatings and torture before being released in bad health.
The move further tightens Chinese authorities' restrictions at the once-sprawling Tibetan Buddhist study center.
Large crowds gather under the watch of Chinese police to commemorate the death anniversary of a major religious Buddhist teacher.
Many lose large sums, selling livestock and borrowing from friends to support their habit.
His protest brings to 151 the number of self-immolations by Tibetans living in Tibetan areas of China since 2009.
Lobsang Jinpa had been charged with writing the lyrics to a song honoring a former Tibetan religious leader.
Officials reverse an earlier order allowing the gathering to go ahead, citing concerns over crowds.
Detentions come amid heightened security and sureveillance during ruling Communist Party congress in Beijing.
Chinese authorities have destroyed more than 4,700 homes and forced about 4,800 residents to leave the complex.
Local residents are also warned not to discuss politics or share news or photos with outside contacts.
Chinese officials force the move, citing concerns for the environment, a local source says.
But Chinese travelers and trade goods cross without delays, a local source says.
In a practice previously ignored by police, they had brought small quantities back to sell to friends in need.
They had been moved before from traditional grazing areas, and now must move again to make way for tourist development.
Chat group organizers must guard against discussions that threaten China's 'interests,' authorities say.
Tibetan drivers will now be checked for proper documents as China prepares for top-level Party meetings in faraway Beijing.