SEOUL (Reuters) - North Korea could build a fully operational submarine equipped with ballistic missiles within two or three years, a South Korean defense official said on Monday.
The official, who requested anonymity because of the sensitivity of the matter, said photos of North Korea's test of a submarine-launched ballistic missile appeared authentic.
North Korea said on Saturday it had successfully test-fired a ballistic missile from a submarine. Such a development, if verified, would mark a significant new technological achievement for Pyongyang.
(Reporting by Ju-min Park; Editing by Paul Tait)
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