North Korea’s population of political prisoners is expanding, according to a new report from Amnesty which details brutality such as rape, torture, and forcing people to dig their own graves.

“The prisoners are only humans insofar as they can speak,” said a former prison official who was not named in the report, “In reality though, they are worse off than animals. The purpose of prison camps is to oppress, degrade, and violate the inmates for as long as they are alive.”

Amnesty International commissioned a satellite analysis of the country's largest prison camp, known as “Kwanliso 16”, a massive complex consuming 348 square miles near Hwaseong in North Hamgyong province, larger than many major cities around the world.  It shows that new buildings have been built inside the since North Korean leader Kim Jong Un replaced his late father.

Anywhere from 100,000 to 200,000 people are imprisoned in this camp and similar facilities for alleged crimes against the state, which can include “gossiping” about Kim or his predecessors.  Family members are also sent into gulag, and any generations born into the family live and die in the camps.  Despite the fact they are clearly visible by satellite, North Korea denies the camps existence.

A United Nations report released earlier documented the “unspeakable atrocities” committed upon prisoners.  People forced to eat lizards and rodents to survive.  One woman who made it out told investigators another inmate forced to drown her baby in a bucket.