In the test, which lasted 71 hours and 6 minutes from April 4-7, the drone swam 1000 kilometers on “elliptical and octagonal routes” and then detonated an imaginary nuclear weapon.
According to Yonhap, the successful test confirmed the system’s “lethal potential” and reliability. This happened after the country’s leader Kim Jong-un conducted the first test of a new underwater nuclear weapons system that could cause a “radioactive tsunami” on March 24.
Previously, North Korea warned the United States and South Korea to cease military provocations, as Pyongyang could resort to the use of nuclear weapons.
Source: Ferra
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