Colombia's largest rebel group FARC says it's calling a 30-day ceasefire starting from December 15.
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 communique was read by rebel commander Pablo Catatumbo.
The announcement comes a day after a rebel attack killed nine people at a police post. Twenty-three civilians and 12 police were also injured.
Colombian President Juan Manuel Santos has ruled out a ceasefire on the government's part during the peace talks that started late last year.
The rebels declared a unilateral ceasefire when the talks started, but abandoned it two months later.

