Two prominent human rights activists have been charged with attempting to change the "constitutional order" of Ethiopia by force, the pro-government Walta Information Centre has reported. Professor Mesfin Woldemariam, former head of the Ethiopian Human Rights Council (EHRCO), and Dr Berhanu Nega, head of the non-governmental Ethiopian Economic Association, were also charged with being members of an unlawful clandestine organisation, Walta said.