North Korea says its latest missile test was aimed at carrying a "large-size heavy nuclear warhead."
The North's official news agency made the announcement Monday. North Korea launched a ballistic missile early Sunday that traveled over 400 miles before dropping into the sea. Kim Jong Un supervised the test and warned the United States not to underestimate their ability to strike the U.S. mainland. The isolated communist nation is believed to be developing an intercontinental ballistic missile that can reach the U.S.
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