E/CN.4/1990/17 page 12 identified they were released after education and returned to their home towns. On 4 January 1989 Chen and two others went to the Public Security Bureau of the Qingyuan County and "kicked up a big row, seriously disrupting the normal work there. When efforts of persuasion failed, the public security department gave them a three-day detention as a punishment in accordance with the Regulations on Administrative Penalties for Public Security. The allegation that they were 'tortured1, 'stripped naked', 'forced to lie on a cement floor' and 'burned with lighted cigarettes' were sheer fabrications". 43. On 13 June 1989 the Special Rapporteur sent an urgent appeal to the Government of China concerning information alleging that a large number of persons who had been arrested during the first week of June 1989, at Beijing University campuses and in other areas of the city, on suspicion of active participation in demonstrations, had been severely beaten upon arrest. The following were among those arrested: Lin Xiaobb, a lecturer in the Chinese Department of Beijing Normal University; arrested on 6 June in Beijing; Cao Siyuan, a senior advisor to Secretary General Zhao Ziyang, arrested on 3 June in Beijing; Cheng Yu, a PhD candidate at the University of Chicago (United States of America), her one-year-old son, Lee Payton, and Tong Boning, a student at the University of California, Los Angeles; all three were reportedly arrested by plain clothes policemen at Beijing airport on 5 June. Reportedly, both Chen Yu and Tong Boning had participated in demonstrations in Tienanmen Square, Beijing. Fears were expressed that these and the other persons recently arrested might be subjected to further ill-treatment or torture while in detention. 44. On 29 November 1989 the Special Rapporteur sent an urgent appeal to the Government of China concerning Tseten Norgye, aged 45, from Lhasa, who had been arrested in April or May 1989, allegedly for having distributed Tibetan propaganda. Tseten Norgye was reportedly being held, without charge, in Chakpori detention centre in Lhasa. It was alleged that Tseten Norgye had lost one eye and was seriously injured as a result of torture during interrogations. It was further alleged that prisoners held in Chakpori detention centre were systematically and severely tortured. In particular, it was alleged that nuns held in Chakpori in July had had their breasts amputated. Colombia 45. On 7 March 1989 the Special Rapporteur sent an urgent message to the Government of Colombia concerning Orlando Agredo Jimenez, aged 29, a farmer. The information received indicates that he was arrested by army personnel on 24 November 1988. According to the information, he was taken to Santiago Military Base where, in the course of the interrogation, he was subjected to ill-treatment. It is also stated that the fingers of Mr. Agredo's right hand were cut off. 46. On 19 April 1989 the Special Rapporteur sent a. letter to the Government of Colombia transmitting information concerning allegations of cases of torture and ill-treatment in Colombia. The complainants alleged the following: (a) In December 1988 Elvia Regina Cuello Hernandez, Chairwoman of the Community Action Board, her daughter Deyanira and her niece Marisela Margarita Cuello Hernandez were allegedly forced by the army to leave the town of El Pato, Antioquia. Subsequently, on 23 January Marisela M. Cuello and