Pictures of inmates at El Salvador prison where prison guards are scared to go in

Penas Ciudad Barrios is a prison exclusively housing inmates from the Mara Salvatrucha gang in El Salvador.In Penas Ciudad Barrios, the Mara Salvatrucha control their own miniature society of some 2,500 incarcerated members, complete with a bakery, workshops, a hospital and rehab.Their faces and bodies are covered in ink, telling the stories of the crimes they have committed and in honour of who they have done so all over their bodies.
They are drug pushers, murderers and weapons dealers - members of the Mara Salvatrucha (MS-13), a gang so feared in El Salvador that they have been left to run their own prison.