The main trafficking routes used by the Revolutionary Armed Forces of Colombia (FARC) pass through Venezuela, Panamá and the Pacific Ocean, and they are led by seven rebel leaders, reported the Colombian newspaper El Tiempo.

The newspaper highlighted that this is inferred from documents on the computer belonging to "Edgar Tovar," head of FARC's 48th Front, who was killed by the Colombian military, Efe reported.

Sources of the US Drug Enforcement Administration (DEA) confirmed to the Bogotá's newspaper that the documentation found in the computer of "Edgar Tovar" is "obviously the main evidence that the FARC are a drug cartel."

The Colombian police found about 60 emails that the rebel leader exchanged with FARC's Secretariat and several guerrilla leaders in which they exchanged information about drug shipments and alliances with emerging gang leaders and criminals to move the drug from the departments of Nariño and Cauca (southwest of Colombia).

"Given the weakening of the fronts in the Eastern Bloc, who were the mafia structure of FARC, the (drug) businesses focused on the border fronts," said one of the police investigators.

The report said that one of the main challenges of enforcement officials is to attack the money laundering that the guerrillas have transferred to Central America and neighboring countries.