The Public Security Bureau arrested Tsayang during a late-night raid, according to the Dharamsala, India-based Tibetan Centre for Human Rights and Democracy, which said it had received the information from several sources.
An environmental activist and photographer who also wrote online articles under the penname Gang-Nyi (Sun of Snowland), Tsayang maintained his own website, Zindris (Jottings), and contributed to others. He wrote several essays on politics in Tibet, including “Who is the real instigator of protests?” according to the New York-based advocacy group Students for a Free Tibet.
Tsayang was convicted of revealing state secrets and sentenced in November 2010 to five years in prison, according to the center. Sentencing was imposed during a closed-court proceeding in the Tibetan area of Gannan, Gansu province.
A number of Tibetans, including journalists, were arrested around the March anniversary of the failed uprising in 1959 that prompted the Dalai Lama’s departure from Tibet. Security measures were heightened in the region in the aftermath of ethnic rioting in March 2008.
No information about where he is being held or any details about his health and living conditions have been disclosed.