The area is now completely safe but was at one time affected by the Colombian armed conflict between the Colombian National Army, right-wing paramilitary groups and left-wing guerrilla groups like National Liberation Army (ELN) and Revolutionary Armed Forces of Colombia (FARC). On 15 September 2003, ELN kidnapped eight foreign tourists visiting Ciudad Perdida, demanding a government investigation into human rights abuses in exchange for their hostages.[4] ELN released the last of the hostages three months later. The United Self-Defense Forces of Colombia (AUC), the paramilitary right-wing groups in that country, continued attacking aborigines and non-aborigines in the zone for a while.