 North Korea has tested a new nuclear-capable underwater attack drone that can generate a radioactive tsunami, state media reported on March 24, as it blamed joint military drills by South Korea and the US for raising tensions in the region. During the drill shown on state television KRT, the new North Korean drone cruised underwater at a depth of 80 to 150 meters for over 59 hours and detonated in waters off its east coast. Dubbed hail or tsunami, the drone system is intended to make sneak attacks in enemy waters and destroy naval striker groups and major operational ports by making a superscale radioactive wave through an underwater explosion, state news agency KCNA said. KRT also confirmed the North fired cruise missiles on March 22 to practice carrying out tactical nuclear attack missions, confirming earlier reports from the South Korean military.