Havana - Colombia's largest rebel group says it's calling a 30-day cease-fire starting 15 December.
Leaders of the Revolutionary Armed Forces of Colombia made the announcement on Sunday in Havana, which is hosting the insurgents' peace talks with the Colombian government.
The communiqué was read by rebel commander Pablo Catatumbo.
The announcement comes a day after a rebel attack killed nine people in an attack on a police post.
Twenty-three civilians and 12 police also were injured.
Colombia's President Juan Manuel Santos has ruled out a cease-fire on the government's part during the peace talks that started late last year. The rebels declared a unilateral cease-fire when the talks started, but abandoned it two months later