US Spy Satellites Are Detecting Activity At North Korea's Nuclear Test Site

CNN: US spy satellites detect activity at North Korean nuclear test site

Washington (CNN)US spy satellites have detected new activity at North Korea's underground nuclear test site for the first time in several weeks, two US officials told CNN.

The activity appears to involve some modifications around one of the tunnel entrances to an underground test area.

The officials said it is not yet clear if the activity indicates a sixth nuclear test is imminent, but noted there is concern that North Korea could set off a test during Wednesday's visit to Washington by top Chinese diplomats and military officials.

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WNU Editor: The North Koreans do

this every 6 months .... North Korea ‘willing to talk’ with US about nuclear moratorium (News.com.au).

More News On US Spy Satellites Detecting Activity At North Korea's Nuclear Test Site

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As US and China Meet, North Korea Nuclear Activity Spotted at Missile Site -- Newsweek
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What's Happening With North Korea's Nuclear Site? Activity Overshadows US-China Meeting -- International Business Times