Korea, Democratic People's Republic of
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The Onsong concentration camp was an internment camp in Changpyong, Onsong County, North Hamgyong, North Korea. It housed approximately 15,000 political prisoners. The camp was officially known as Concentration Camp (Kwan-li-so) No. 12. Although information about the camp is scarce, two defectors have alleged the forcible suppression of a large riot in May 1987 at the camp.
Source: Wikipedia article lead, CC-BY-SA.
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Operational
Figures from official sources · verified 28 May 2026 · methodology
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Mixed/unknown
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Death-row facility
No
No conditions summary available yet.
No visiting information available.
No mailing information available.
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No major issues documented in our database.
No public contact details available.
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Same country, matched on type + security level where possible.
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Under CC-BY-4.0. Include the URL and access date; the site is a living reference and entries can change.
World Prisons. (2026). Onsong concentration camp. Retrieved July 21, 2026, from https://worldprisons.com/prisons/onsong-concentration-camp
"Onsong concentration camp." World Prisons. Accessed July 21, 2026. https://worldprisons.com/prisons/onsong-concentration-camp.
@misc{worldprisons-onsong-concentration-camp,
author = {{World Prisons}},
title = {Onsong concentration camp},
year = {2026},
url = {https://worldprisons.com/prisons/onsong-concentration-camp},
urldate = {2026-07-21}
}