At least 20 FARC rebels have been killed in Colombia after the military launched bombing raids against a camp in Columbia's Narino province, near the border with Ecuador.
The raid is the biggest military operation to occur against FARC since peace talks began in October, BBC News reported.
FARC, or the Revolutionary Armed Forces of Colombia, is Colombia's largest guerrilla group. In November, the group announced a ceasefire that was set to last until January 20, Al Jazeera reported.
On Sunday, Colombian President Juan Manuel Santos rejected calls for a government-led truce until a final agreement between the government and Farc to disarm the rebels of their weapons had been established.
According to News 24, the conflict between FARC and Colombia has dragged on for almost 50 years, leaving about 600,000 dead, 15,000 missing and four million people domestically displaced.