Vladimiro Roca Antunes, Maria Beatriz Roque Cabello, Rene Gomez Manzano, Felix A Bonne Carcases, members of the Internal Dissidents’ Working Group for the Analysis of the Cuban Socio-Economic Situation; Luis Lopez Prendes, journalist with the Cuban Independent Press Bureau: Amnesty International is calling for the immediate and unconditional release of the above prisoners of conscience who were detained in July 1997.