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.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
The rebels declared a unilateral ceasefire when the talks started, but abandoned it two months later.
