Farc declared a two month unilateral ceasefire on Monday in Havana, Cuba, following landmark talks between Farc and the Colombian government.
Ivan Marquez, Farc's negotiator, said that they would halt all attacks from midnight on Monday, till 20th January.
The government's top negotiator, Humberto de la Calle, had previously said that Farc must agree to disarm, and that the army would continue fighting Farc till a peace deal was signed. There has been no response as yet on the unilateral ceasefire.