Ilham Tohti, an ethnic-Uyghur Chinese economist based in Beijing, was taken from his Beijing home by several police officers on January 15, under suspicion of breaking the law. His whereabouts appear to be unknown.
Tohti had been arrested before, in 2009, reportedly for having written critically about government policies toward the Uighurs. He was apparently released in August the same year.
Tsering Woeser has posted » a petition, drafted by her husband Wang Lixiong. According to the post, 1,801 signatures from 42 countries were collected by 20:00 hours Beijing time on Tuesday. The post includes an English translation of the petition.
» About Nur Bekri, March 2009