The projectile North Korea fired off its east coast on Tuesday was a newly developed hypersonic missile.
That's according to state media KCNA which described the missile as a 'strategic weapon' that increases Pyongyang's defense capabilities.
Unlike ballistic missiles that fly into outer space before returning on steep trajectories, hypersonic weapons fly towards targets at lower altitudes and can achieve more than five times the speed of sound.
They are considered the next generation of arms that aim to rob adversaries of reaction time and traditional defeat mechanisms.
Tuesday's test has certainly rattled North Korea's neighbors and beyond.
South Korea's President Moon Jae-in has ordered aides to conduct a detailed analysis of the North's recent actions.
North Korea, in turn, has accused Seoul and Washington of "double standards," saying they denounce its weapons development while continuing their own military activities.
Analysts warn of an intensifying arms race emerging with the U.S. and Russia recently testing lower altitude hypersonic weapons.