A human rights group in Seoul released a report on Wednesday titled “Mapping Crimes Against Humanity in North Korea“, whose objective is to map locations used for killings and mass graves by the North Korean government.

The group, called the Transitional Justice Working Group (TJWG), used satellite imagery and interviewed hundreds of North Korean defectors in order to painstakingly document suspected locations where human rights abuses occurred at the hands of the Democratic People’s Republic of Korea (DPRK) regime.

The intent is to have an accurate record which can be used to hold regime officials accountable for crimes against humanity should the DPRK regime fall. The TJWG says they are taking steps to move forward on numerous international condemnations and declarations to hold human rights abusers in the DPRK responsible.