In recent months there has been much speculation surrounding the closure of North Korean prison Camps 22 and 18. However, questions still remain unresolved: Why were the camps closed – and what happened to the prisoners?

But while researchers continue work on answering these questions, North Korea is wasting no time at erasing existing evidence of the camps, just as it did with others it closed in the past - such at Camps 12 and 13 (which were located just north of Camp 22).