The latest to be arrested is Dokru Tsuilrim, a monk who edited the magazine Khawai Tsesok (Soul of the Snow).
"The press freedom organisation hails the release of Golok Jigme, a monk who helped filmmaker Dhondup Wangchen make the 2008 documentary "Leaving fear behind". Dhondup Wangchen is still being held." said in RSF's report.
"We are very worried by the reports of Chinese police torturing detained Tibetans, including a lama defended by lawyer Li Fangping," Reporters Without Borders said. "They increase our concern that the six journalists detained in Tibet are being mistreated. All those held because of the views they expressed must be released without delay.
Chinese police arrested Dokru Tsuilrim in his room in Ngaba Gomang monastery (in Sichuan province) at the start of April for publishing articles that allegedly support the "separatist forces." The authorities have suspended publication of his magazine.
The authorities have meanwhile stepped up controls in Machu county in Gansu province. According to a researcher at India's Norbu Lingka Institute, Chinese officials threatened reprisals against residents who continue to listen to international radio stations or visit websites such as the Radio Free Asia one. The authorities have installed dozens of satellite dishes while confiscating those belonging to private individuals.
Tibetan human rights groups have reported new cases of Tibetans being arrested for sending "state secrets" abroad. One is a monk identified as Thuksam, based in Nurma monastery, who has been held since 11 March. The Public Security Bureau accuses him of sending reports about human rights violations to organisations abroad. It is not known where he is being held.