|North Korean leader Kim Jong Un and his daughter Kim Ju Ae watch a missile drill at an undisclosed location in this image released by North Korea's Central News Agency (KCNA) on March 20, 2023. (Photo: REUTERS)
During the drill, the new North Korean drone cruised underwater at a depth of 80 to 150 metres for over 59 hours and detonated in waters off its east coast on Thursday, North Korean state news agency KCNA said.
Dubbed "Haeil", 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 super-scale radioactive wave through an underwater explosion, the KCNA said.
"This nuclear underwater attack drone can be deployed at any coast and port or towed by a surface ship for operation," the news agency said, adding the test had been overseen by leader Kim Jong Un.