Aerial view of a seized narco-submarine towed by a Colombian Navy ship in Buenaventura, Valle del Cauca department, Colombia, on March 21, 2021. - The submarine, which contained several packages of cocaine, was destined for the coasts of Mexico and belonged to a dissident armed group of the FARC guerrilla, according to authorities. Drug trafficking gangs, which succeeded paramilitaries and guerrillas in the area, have extended their domains to the mangroves surrounding Buenaventura, turning it into a "water-graveyard". (Photo by Luis ROBAYO / AFP)