With the evidence of domestic technology, the Democratic People's Republic of Korea made most of the key parts of the long-range rocket it launched in December, the Republic of Korea said on Monday.

The DPRK is banned from carrying out missile and nuclear-related activities under UN sanctions and the Security Council is closing on a resolution that will see it punished again for December's launch.

The ROK's Defense Ministry said in a report that the DPRK "is believed to have made a majority of components itself, although it used commercially available products imported from overseas".