Pyongyang insists that the camps do not exist and are merely foreign propaganda, but the advent of high-resolution, free images from outer space has disproved that claim.
Human rights activists are turning to Google Earth to identify the vast network of prison camps that dot the North Korean countryside and hold as many as 200,000 people deemed hostile to the regime.
The fence has two checkpoints and six guard posts, while a number of accommodation units and office buildings are also clearly visible. A coal mine within the fence does not appear to be operational, Melvin concluded.
The North Korean regime hiding and distorting the harsh reality of North Koreas unforgiving political prison camp system is no longer an option, said Greg Scarlatoiu, executive director of the organisation. With constant satellite imagery, we can maintain a watch over these camps even if no outside entry is allowed.
Very few North Koreans have managed to escape from prison camps and to freedom outside the countrys borders, but those who have tell of terrible suffering.
The Committee for Human Rights in North Korea has been working with DigitalGlobe, a leading earth-imagery company, and in 2012 released the second version of its Hidden Gulag report, based on images taken by satellites.
A new report by the National Human Rights Commission suggests that the majority of inmates were caught attempting to flee the country in search of food or work, instead of being incarcerated for their political beliefs. Others were detained after being overheard praising South Korea.
Ms Pillay concluded that it is time to take stronger action, and that a very significant first step could be made by setting up an independent international inquiry into one of the worst - but least understood and reported - human rights situations in the world.
Ms Pillay met two survivors of North Korean prison camps in December and condemned the use of torture and summary executions to control the inmates.
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Activists say that as many as 40 per cent of inmates die of malnutrition, while others succumb to disease, ual violence, torture, abuse by the guards or are worked to death.
Inmates - who can be imprisoned for life, along with three generations of their milies, for anything deemed to be critical of the regime - are forced to survive by eating rats and picking corn kernels out of animal waste.
But a year after Kim Jong-un became the countrys new supreme leader, we see almost no sign of improvement.
Anyone sent to a North Korean labour camp is unlikely to ever leave again, analysts say, while a iled attempt to escape brings execution.
In a statement issued in Geneva in early January, Navanethem Pillay, the UN high commissioner for human rights, said, There were some initial hopes that the advent of a new leader might bring about some positive change in the human rights situation.
Using newly provided Google Earth images, analyst Curtis Melvin was able to conclude that the new camp sits alongside Camp 14 and has a perimeter fence that stretches nearly 13 miles.
On January 18, the North Korean Economy Watch website announced that a new camp had been identified alongside an existing detention cility in Kaechon, South Pyongan Province.
The dramatically improved, higher resolution satellite imagery now available through Google Earth allows the former prisoners to identify their former barracks and houses, info on insurance their former execution grounds and other landmarks in the camps, it notes.
Men,Insurance knowledge. women and children are required to work for up to 16 hours a day in dangerous conditions, often in mines or logging camps.
The report acknowledged the importance of Google Earth in shining new light on the camp system.
Rights groups are satellite view Google Earth exposes North Koreas secret prison campspushing the United Nations high commissioner for human rights to open an international investigation into Pyongyangs deplorable record on its citizens rights, including a system of political prisons that has operated for more than 50 years.