( dpa )- Carlos Marin, alias Pablito , the alleged leader of the leftist National Liberation Army (ELN), was arrested by the Colombian army Tuesday in Bogota .
Colombian authorities who confirmed the arrest said Marin was among the ELN leaders that opposed peace talks held with the Colombian government in Havana.
The ELN is the second-largest guerrilla in the troubled South American country, after the Revolutionary Armed Forces of Colombia (FARC).
Defence Minister Juan Manuel Santos called Pablito "a very dangerous person" that belonged to the ELN's central command body.
"Alias Pablito is considered the ELN's most important leader," Santos said in a press conference. "He is a military boss, a man responsible for the cruel murder of the bishop of the city of Arauca , Jesus Jaramillo, on May 19, 1992. He was also responsible for the attack on a Venezuelan military base in the state of Apure on February 25, 1995, where eight soldiers died."
Santos said Marin controlled "three of the ELN's seven fronts."
"As the person responsible for all drug trading (for the ELN), he had very important international contacts for the organization," Santos said.