Chinese authorities have fined (20,000-60,000 Yuan) 21 teachers from the Tibetan Nationality Middle School in Machu County of eastern Tibet for teaching subversive topics to the students.In late March and early April 2010, students of the middle school, led by its seniors, staged a series of peaceful protests against the government, and in response the Chinese government fired the school's headmaster, Kyabchen Dedrol, and his assistants Do-Re and Choekyong Tseten. Later, the two were reportedly arrested by officials from the Public Security Bureau.