The dark prison is the informal name used by some Guantanamo Bay

Guantanamo Bay detainment camp

The Guantanamo Bay detention camp is a detainment and interrogation facility of the United States located within Guantanamo Bay Naval Base, Cuba. The facility was established in 2002 by the Bush Administration to hold detainees from the war in Afghanistan and later Iraq...

 detainees for a secret prison they claim they were detained in near Kabul

Kabul

Kabul , spelt Caubul in some classic literatures, is the capital and largest city of Afghanistan. It is also the capital of the Kabul Province, located in the eastern section of Afghanistan...

, Afghanistan

Afghanistan

Afghanistan , officially the Islamic Republic of Afghanistan, is a landlocked country located in the centre of Asia, forming South Asia, Central Asia and the Middle East. With a population of about 29 million, it has an area of , making it the 42nd most populous and 41st largest nation in the world...

. According to an article distributed by Reuters

Reuters

Reuters is a news agency headquartered in New York City. Until 2008 the Reuters news agency formed part of a British independent company, Reuters Group plc, which was also a provider of financial market data...

, eight Guantanamo detainees have described the conditions they were held under in "the dark prison" or the prison of darkness.

Detainees claimed that they were detained in complete darkness for weeks on end. They described being deprived of food and water and being fed filthy food and water when they were fed.

The prisoners' details have been consistent, that the guards did not wear military uniforms — prompting Human Rights Watch

Human Rights Watch

Human Rights Watch is an international non-governmental organization that conducts research and advocacy on human rights. Its headquarters are in New York City and it has offices in Berlin, Beirut, Brussels, Chicago, Geneva, Johannesburg, London, Los Angeles, Moscow, Paris, San Francisco, Tokyo,...

 to suggest it was run as a black site

Black site

In military terminology, a black site is a location at which an unacknowledged black project is conducted. Recently, the term has gained notoriety in describing secret prisons operated by the United States Central Intelligence Agency , generally outside of U.S. territory and legal jurisdiction. It...

 by the Central Intelligence Agency

Central Intelligence Agency

The Central Intelligence Agency is a civilian intelligence agency of the United States government. It is an executive agency and reports directly to the Director of National Intelligence, responsible for providing national security intelligence assessment to senior United States policymakers...

. One prisoner reported being threatened with rape.

The Miami Herald

The Miami Herald

The Miami Herald is a daily newspaper owned by The McClatchy Company headquartered on Biscayne Bay in the Omni district of Downtown Miami, Florida, United States...

reports that the Dark Prison is another name for the Salt Pit

Salt Pit

The Salt Pit is the codename of an isolated clandestine CIA black site prison, and interrogation centre in Afghanistan. It is located north of Kabul and functioned as a brick factory prior to the US invasion of Afghanistan...

.

Detainees who claimed to have been detained in the dark prison included

Jamil al-Banna Jamil al-Banna Jamil el-Banna is a Jordanian with refugee status in the United Kingdom who had been living in north-west London. He is currently on bailed release in the United Kingdom following his release from extrajudicial detention in the United States in the Guantanamo Bay detainment camps, in Cuba.The ...
Abd al-Salam Ali al-Hila	currently detained in Camp Delta
Bisher al-Rawi	detained in the Guantanamo Bay detention camps until March 2007 arrested in Gambia with Jamil al-Banna Jamil al-Banna Jamil el-Banna is a Jordanian with refugee status in the United Kingdom who had been living in north-west London. He is currently on bailed release in the United Kingdom following his release from extrajudicial detention in the United States in the Guantanamo Bay detainment camps, in Cuba.The ... released when the British public learned he was already co-operating with MI5 MI5 The Security Service, commonly known as MI5 , is the United Kingdom's internal counter-intelligence and security agency and is part of its core intelligence machinery alongside the Secret Intelligence Service focused on foreign threats, Government Communications Headquarters and the Defence...  in their surveillance of Abu Qatada Abu Qatada Abû-Qatâda al-Filisṭînî , sometimes called Abû-Omar is an Islamist militant. Under the name Omar Mahmoud Othman , he is under worldwide embargo by the United Nations Security Council Committee 1267 for his affiliation with al-Qaeda...
Hassin Bin Attash	currently detained in Camp Delta claims he was tortured in the black site Black site In military terminology, a black site is a location at which an unacknowledged black project is conducted. Recently, the term has gained notoriety in describing secret prisons operated by the United States Central Intelligence Agency , generally outside of U.S. territory and legal jurisdiction. It... s 17 when captured brother of Waleed Muhammad bin Attash Tawfiq bin Attash Walid Muhammad Salih bin Roshayed bin Attash is a Yemeni prisoner held in extrajudicial detention at the United States' Guantanamo Bay detention camps....
Binyam Mohammed	detained in the Guantanamo Bay detention camps until February 2009 claims he was tortured in the black sites US government claims he is a co-conspirator of Jose Padilla José Padilla (alleged terrorist) José Padilla , also known as Abdullah al-Muhajir or Muhajir Abdullah, is a United States citizen convicted of aiding terrorists....
Laid Saidi Laid Saidi Laid Saidi is an Algerian who has claimed that he was imprisoned, for several years, in a CIA black site in Afghanistan called "the salt pit"....	Saidi worked for the Al-Haramain Foundation Al-Haramain Foundation Al-Haramain Islamic Foundation was a charity foundation, based in Saudi Arabia, alleged by the U.S. Department of the Treasury in a September 2004 press release to have "direct links" with Osama bin Laden... , in Tanzania Tanzania The United Republic of Tanzania is a country in East Africa bordered by Kenya and Uganda to the north, Rwanda, Burundi, and the Democratic Republic of the Congo to the west, and Zambia, Malawi, and Mozambique to the south. The country's eastern borders lie on the Indian Ocean.Tanzania is a state... , until his capture on May 10, 2003. Was also detained in "the salt pit" at the same time as Khaled el-Masri.
Sanad al-Kazimi	Alleges he was beaten with electric cables and attempted suicide three times in the prison.
Hayatullah	Held in "the black prison" for forty days before being transferred to Bagram, in 2007. Reports that the walls of the prison are currently concrete blocks, but that captives who had been held there a long time say they were originally plywood, painted black. Believed the prison was near Bagram, and was also called "Tor Jail".