North Korea carried out an underwater strategic weapon system check from April 4 to April 7, state media KCNA stated on Saturday.

The nation examined one other form of a nuclear-capable unmanned underwater assault weapon known as “Haeil-2”, after it disclosed a brand new underwater drone system designed to make sneak assaults in enemy waters.

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“The test perfectly proved the reliability of the underwater strategic weapon system and its fatal attack ability,” the North’s state information company stated.

North Korea has ramped up its navy actions in current weeks in a present of drive in opposition to the United States and South Korea that conduct joint navy drills.

It unveiled new, smaller nuclear warheads and fired an intercontinental ballistic missile able to putting wherever within the United States.