A rights group has published satellite images of what it says are North Korea's political prison camps, saying they appear to be growing in size. In a linked report, Amnesty International also provides new witness testimony to shed light on the conditions in the camps.
The document details accounts of torture, starvation and mass executions of political inmates.
Amnesty has urged the secretive state to immediately close all the camps.
It also calls on Pyongyang to publicly admit the existence of the camps.
The North Korean government - which has denied the existence of mass political prison camps - has not publicly commented on the report's findings.
'Eating rats'The new images show four of the six camps occupying huge areas of land in vast wilderness sites in the provinces of South Pyongan, South Hamkyung and North Hamkyung, Amnesty says.
A comparison of the latest pictures with satellite imagery from 2001 indicates "a significant increase in the scale of the camps", it adds. (read more)
