Governments around the world have condemned North Korea for conducting its third nuclear test since 2006. Pyongyang confirmed the test hours after seismic sensors registered a possible underground explosion.
Commercial satellite imagery shows increased activity at North Korea’s nuclear site. The US says it is closely monitoring the situation on the peninsula ahead of Barack Obama’s tour of the region this week.
Shut-down of the reactor at Yongbyon indicates that Pyongyang is having trouble cooling the plutonium production plant and that a failure in the cooling system could trigger 'the release of radioactivity.'
After several months of conciliatory rhetoric emerging from Pyongyang, the North Korean leadership has gone back to provocative military actions and calling its enemies names.
North Korea has defended its recent rocket drills and says it might carry out other types of nuclear tests. Its remarks come in response to UN condemnation of Pyongyang's latest missile launch.
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