Students for a Free Tibet have issued an urgent action alert for Khenpo Kartse, a respected Tibetan Buddhist abbot and human rights defender imprisoned by Chinese authorities for over six months. He is seriously ill with liver and lung disease, and recent reports state that he has been coughing up blood—but has been denied access to his doctor. The action alert calls for supporters around the world to conctact the local Chinese embassy and express concern for Kartse. Arrested in Chengdu, Sichuan province, in early December, Kartse is being held in the Tibet Autonomous Region's Chamdo (Chinese: Changdu) prefecture, in "an extremely cold room with no access to sunlight" and is being inadequately fed, a source close to the case told RFA's Tibetan Service in March. After meeting for the first time with Kartse on Feb. 26, defense lawyer Tang Tian Hao called on Chinese authorities to allow regular medical examinations for the imprisoned monk, "as provided for under the law," the source said. Kartse—who holds the title “Khenpo” denoting a senior religious teacher or abbot—is being held on suspicion of involvement in "anti-state" activities at a monastery in Chamdo. Supporters say Kartse, who is also known as Karma Tsewang, is being persecuted for his work to promote the Tibetan language, culture, and religion. He was also active in social work in the Yulshul area, including in relief efforts following the devastating April 2010 earthquake.