คิมทดสอบ – In this undated photo provided by the North Korean government, North Korean leader Kim Jong Un inspects what it says unmanned underwater nuclear attack craft “Haeil” which was tested during exercises held on March 21 – 23, 2023 in North Korea. (Korean Central News Agency/Korea News Service via AP)

คิมทดสอบ – A TV screen shows a recent image released by Pyongyang’s official Korean Central News Agency during a news program at the Seoul Railway Station in Seoul, South Korea. North Korea said Friday its cruise missile launches this week were part of nuclear attack simulations that also involved a detonation by a purported underwater drone. (AP)

คิมทดสอบ – This photo provided by the North Korean government, shows what it says is an underwater blast of test warhead loaded to an unmanned underwater nuclear attack craft “Haeil” during an exercise around Hongwon Bay in waters off North Korea’s eastern coast Thursday, March 23, 2023. (Korean Central News Agency/Korea News Service via AP)