US sees 'activity' at North Korea nuke sites: US official

The US military has observed activity in North Korea that suggests Pyongyang may be gearing up for another nuclear test, a US official said Thursday. "At the sites where we watch tests, we see a level of activity that's similar to what they've done before other tests," the defense official told AFP on condition of anonymity. Fox News reported earlier on Thursday that North Korea is in the final stages of readying for another nuclear test, possibly within the coming days.
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