A surface-to-surface medium- and long-range ballistic missile Pukguksong-2 is test-fired by DPRK on Jan 12, 2017. [Photo/VCG]

The state media called Pukguksong-2 a "Korean style new type strategic weapon," which was developed on the instructions of top leader Kim Jong Un on the basis of the success made in the test-firing of the submarine-launched ballistic missile last August.

Kim received the report on the development of this surface-to-surface ballistic missile, set the date for the test launch and personally guided the preparations on the spot, it said.

The missile test proved the reliability and security of the surface launch system and reconfirmed the guidance and control features of the ballistic missile during its active flight and working feature of the engines and those of separation at the stages, the KCNA said.

The launch also verified the position control and guidance in the middle section and section of re-entry after the separation of the improved missile warhead, which can be tipped with a nuclear warhead, and the feature of evading interception, it added.