In December 1970 the Archbishop of Conakry, Raymond-Marie Tchidimbo, was sentenced to hard labour for refusing to read government documents from the pulpit calling on Christians to support the government against foreign imperialism. He and at least a thousand other political prisoners remained detained in 1977.[9] A report published in June 1977 by the International League for Human Rights estimated the number of political prisoners at over 3000, alleging prisoners were subject to starvation, torture, murder, and arbitrary execution. The most notorious prison was Camp Boiro, which included amongst its prisoners Diallo Telli.[9]