Three Cameroonian journalists have been charged with fraud and using forged documents and detained in Yaounde's central prison, a judicial source said Thursday. Serges Sabouang, Robert Mintsa and Bibi Ngota, respectively the managing editors of La Nation, Le Devoir and Cameroun Express, were charged Wednesday and sent to the Kodengui prison, said a source close to the case, who asked not to be named.