Government and ELN negotiators held formal talks in this regard in Caracas
The two sides have been engaged in a five-decade-long conflict.
The announcement came as the government is nearing a final peace deal with Colombia’s largest rebel group, Farc.
Around 220,000 people have died in Colombia in violence between the security forces, left-wing rebels and right-wing paramilitary groups since the conflict began in 1964.
Adel Ben Guessoum