PYONGYANG, Sept. 9 (Xinhua) -- The Democratic People's Republic of Korea (DPRK) said Friday that it successfully conducted a nuclear warhead explosion test at the northern nuclear test ground, the fifth by the country since 2006.
The test aimed to judge the power of a newly developed nuclear warhead, said the DPRK Nuclear Weapons Institute.
"This is definitely a higher level of DPRK's technology of mounting nuclear warheads on ballistic rockets," the official KCNA news agency quoted the institute as saying in a statement.
The test "examined and confirmed the structure and specific features of the movement of a nuclear warhead that has been standardized to be mounted on strategic ballistic rockets of the Hwasong artillery units" of the strategic force of the Korean People's Army, said the statement.
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