SEOUL, May 12 (Xinhua) -- South Korea's defense ministry said Thursday that it has been carefully monitoring the nuclear test site of the Dmocratic People's Republic of Korea (DPRK).
"(The DPRK) has completed preparations (for a test) at the Punggye-ri test site. We are continuously monitoring the developments there," ministry spokesman Moon Sang-gyun told a press briefing.
He said Pyongyang remains "ready" to detonate another atomic device at any time.
Yonhap quoted a source familiar with the activities at the nuclear test site in the country's northwest saying that movements of workers and vehicles are still seen in recent satellite imagery, which is a sign that preparations for an underground nuclear experiment are continuing.
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