PYONGYANG – The Democratic People's Republic of Korea (DPRK) confirmed on Tuesday that it test-fired a tactical ballistic missile a day earlier.

The test-launch was designed to verify what it called "the success in the research for the technical upgrading of an important core element," the official Korean Central News Agency (KCNA) reported.

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The KCNA report calls Monday's test event part of the regular activities "to put weapon systems on a highly developed technological basis."

The technical upgrading of the core element is a success, "heralding an important change in improving the performance and sophistication of all offensive weapon systems," it said.