"North Korea Tests Underwater Nuclear Weapon System Amid Tensions with US"

North Korea has tested a nuclear-capable underwater attack drone in response to joint naval exercises involving the US, South Korea, and Japan, warning of "catastrophic consequences" for the US and its allies. Tensions on the Korean Peninsula have been elevated amid Pyongyang's repeated weapons tests, with the latest being a new solid-fuel missile fitted with a hypersonic warhead. This comes as authoritarian leader Kim Jong Un ordered the closure of government bodies dedicated to inter-Korean rapprochement, signaling a rollback of efforts towards reconciliation with South Korea.