North Korea's Kim Jong Un Claims to Own Hydrogen Bomb

North Korea's leader Kim Jong Un claimed that his country developed a hydrogen bomb, NBC News reported. 

The official Korea Central News Agency reported that Kim made the comments as he toured the Phyongchon Revolutionary Site, which marks the feats of his late father Kim Jong Il and grandfather Kim Il Sung. Neighboring countries China and South Korea were unable to confirm the claim.

Zhang Liangui, a North Korea expert based at the China's Central Party School who once studied at Kim Il Sung University, said he doubted North Korea had the ability to develop a hydrogen bomb.

North Korea has remained technically at war with South Korea since a 1950-53 conflict ended in a truce. The North has repatedly threatened to destroy the South, as well as the U.S.

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