Colombia says top guerilla leader, 18 more killed

By Patrick Markey

BOGOTA (Reuters) - Colombian troops backed by war planes have killed a top guerrilla commander in an assault on his jungle camp, delivering another serious blow to the country's largest rebel group, authorities said on Thursday.

Gustavo Rueda Diaz, known as Martin Caballero, and at least 18 other rebels were killed on Wednesday when marines attacked his base near the Caribbean coast, Defense Minister Juan Manuel Santos said at a news conference.

The assault hits at the command structure of the Revolutionary Armed Forces of Colombia, or FARC, which has been weakened by President Alvaro Uribe's U.S.-backed security crackdown against Latin America's oldest guerrilla insurgency.

"FARC commanders should know they have no future because we will find them in every corner of the country," Santos said. "I invite you to surrender or end up in jail or in the grave."

U.S. authorities were investigating Caballero for his involvement in a foiled guerrilla plot to assassinate U.S. President Bill Clinton on a 2000 visit to the Caribbean city of Cartagena, the U.S. Embassy and Colombian officials said.

Under Uribe, Colombia's armed forces have driven the FARC back into the jungles. Violence, bombings and kidnappings from the 40-year-old conflict have eased, but the rebels are still a potent force in remote rural areas.

In September, authorities said Tomas Medina, known as "Black Acacio" and a senior figure the government says was involved in drugs and arms smuggling for the FARC, was killed with 16 other guerrillas in a bombardment of his camp.

Caballero headed FARC operations along the northern coast. He was responsible for the 2000 kidnapping of the current foreign minister, who was appointed to his post after he escaped last year from rebel captivity.