Colombia's President Ivan Duque called Saturday for Venezuelan President Nicolas Maduro to be prosecuted as a "war criminal" in a joint news conference with US Secretary of State Mike Pompeo. Duque spoke as Pompeo rounded off a three-day tour of Venezuela's neighbors designed to increase pressure on the socialist leader to leave power. Duque, a key US ally in the region, said a UN report this week showed "that this is a regime behind violations of human rights that are systematic, and that the head of this dictatorship is a war criminal and the international community must put an end to the situation." The 411-page UN Human Rights Council report accused Maduro and his inner circle of being responsible for probable crimes against humanity. Caracas dismissed the report as "riddled with falsehoods."