Prisoners are often submitted to solitary confinement as a means of isolation, protection from other prisoners, preventing them from influencing other prisoners or torture. Some of these cells have no light or sanitary facilities and are cold and to small to stand or lie down.
Solitary confinement has been reported in the following countries:
[Africa] Lesotho, Liberia, Morocco, Namibia, Rwanda, South Africa
[Asia] China, Saudi Arabia, Viet Nam
[Europe] Poland, Germany