Ivan Duque, the protege of a powerful right-wing former president, promises to "make corrections" to a peace deal with leftist rebels that has divided the country and to crack down on armed groups still roaming the countryside.
Those detained are suspected of using explosives-laden drones in trying to assassinate President Nicolas Maduro. The attack comes as Venezuela reels from a worsening economic and humanitarian crisis.
Ivan Duque, who takes office in August, campaigned on rolling back benefits inscribed in a peace deal brokered by outgoing President Juan Manuel Santos.
Whatever your take is on drugs, you have to give traffickers some credit for their innovation: A fake World Cup trophy has been seized by police in Colombia after the 14-inch, 24-pound replica was discovered by investigators and found to be made entirely of cocaine.
The demise of Manuel "Sureshot" Marulanda has been rumored many times before, but this time the Colombian army has announced that the long-time leader of the rebel group FARC is dead and has challenged FARC to disprove the report. Sources close to Marulanda have yet to confirm the news.
Venezuelan President Hugo Chavez ratcheted up the tension between his country and neighboring Colombia by moving tanks and thousands of troops to the border between the two nations Sunday. Chavez's actions were prompted by Colombia's killing of a key Revolutionary Armed Forces of Colombia (FARC) leader and 16 other FARC members in Ecuador the previous day. Chavez has friendly relations with FARC.