SEOUL, Sept. 9 (Xinhua) -- South Korea's spy agency on Friday expressed worries about the faster-than-expected progress in the technology of the Democratic People's Republic of Korea (DPRK)'s nuclear weapons miniaturization.
Chief of the National Intelligence Service (NIS) briefed South Korean lawmakers of the parliamentary intelligence committee on what the DPRK claimed was a successful "nuclear warhead explosion" test.
Two members of the ruling Saenuri Party and the main opposition Minjoo Party, who attended the briefing, told reporters that the NIS head expressed concerns about the country's significantly faster-than-expected speed at developing a miniaturized nuclear warhead.
Lee Byung-ho, the spy agency chief, said the DPRK's aim is to develop a nuclear warhead small enough to fit on even a short-range Scud missile.
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