LUIS JAIME ACOSTA FOUR children from an Indigenous community in Colombia were found alive in the country's south on Friday more than five weeks after the plane they were travelling in crashed in a thick jungle, Colombia's President Gustavo Petro said. The siblings were rescued by the military near the border between Colombia's Caqueta and Guaviare provinces, close to where the small plane had crashed. The plane - a Cessna 206 - was carrying seven people on a route between Araracuara airport, in Caqueta province, and San Jose del Guaviare, a city in Guaviare province, when it issued a mayday…