A so-called Social Purification project led to thousands of ordinary citizens being imprisoned under the military government in South Korea in the 1980s. Under the pretence of clearing the streets of vagrants and undesirables, people were sent to camps disguised as 'social welfare centres' where many of them suffered torture, forced labour, and physical and sexual abuse. Bugyeong Jung has been speaking to Seung-woo Choi who was taken to a centre in the port city of Busan when he was just 13 years old.

Photo: Seung-woo Choi talking to reporters outside South Korea's National Assembly. Credit BBC.