The rebels, the Revolutionary Armed Forces of Colombia, have not yet responded.
His offer came in response to a letter from a guerrilla group, the Revolutionary Armed Forces of Colombia, that appealed for talks.
Some of these joined the Revolutionary Armed Forces of Colombia, which the communist party supported.
Officials blamed members of the guerrilla group known as the Revolutionary Armed Forces of Colombia.
The leaders of one group, the Revolutionary Armed Forces of Colombia, said it did not abduct him.
Colombia's largest group, the Revolutionary Armed Forces of Colombia, is feuding with the traffickers.
Most of the guerrillas killed were from the country's largest rebel group, the Revolutionary Armed Forces of Colombia.
Outfits like the Revolutionary Armed Forces of Colombia are not likely to be restrained by any declared neutrality.
Its guerrillas always operated urban cells, and the largest rebel group, the Revolutionary Armed Forces of Colombia, also had a presence here.
Rebels from the Revolutionary Armed Forces of Colombia, the rebel group that operates in the jungle area, issued no statement.