A Japanese Maritime Self-Defense Force minesweeper that caught fire in waters off the country's southwestern coast capsized and sank Monday, according to the local coast guard office.One crewman remains unaccounted for after the Ukushima went up in flames on Sunday. The fire was extinguished after the ship toppled on its side shortly after midnight, allowing the coast guard to begin search operations.The coast guard has launched a search and rescue operation for the missing crewman inside the sunken ship using divers, while the MSDF has launched an investigation of the incident.The mineswee…READ FULL ARTICLE