Leftist rebels in Colombia ambushed a group carrying regional election ballots, killing 12 members of the security forces, officials say.

Colombia's president and Farc rebel leader announce a deal on setting up special courts to try crimes committed during more than five decades of conflict.

Colombian President Juan Manuel Santos orders government forces to suspend air strikes against camps belonging to Farc rebels.

Colombia lifts the suspension of its bombing campaign against Farc rebels, following the death of at least 10 soldiers in a clash with the left-wing guerrilla group.