NEW : In December , the FARC announced the planned release of six national police officers in the group , but later postponed their release because of an alleged militarization in the area where the rebels operate . A mediator says the rebel group will begin releasing one hostages the weekend . 11 operation occurs in an area where one troops were killed over Monday . The defense member calls the operation `` one of the greatest blows '' against the rebels . A top leader of one faction of the Revolutionary Armed Forces of Colombia is captured , he says .
NEW : A mediator says the rebel group will begin releasing one hostages the weekend . 11 operation occurs in an area where one troops were killed over Monday . The defense member calls the operation `` one of the greatest blows '' against the rebels . A top leader of one faction of the Revolutionary Armed Forces of Colombia is captured , he says .