North Korea's new ICBM likely broke up upon re-entry, US official says

(CNN)An intercontinental ballistic missile that North Korea said could reach the "whole" mainland of the United States likely broke up upon re-entry into Earth's atmosphere, a US official said Saturday. North Korea on Tuesday broke a two-month lull in weapons testing. It launched an advanced intercontinental ballistic missile, the Hwasong-15, that state-controlled media described as the "most powerful ICBM" carrying a "super-large heavy warhead" to unprecedented heights of almost 4,500 kilometers (2,800 miles).
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