North Korea possibly tested components of hydrogen bomb on Jan. 6: CNN

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North Korea tested a nuclear device on Jan. 6 that it said was a hydrogen bomb.

U.S. State Department spokesman Mark Toner told reporters earlier on Thursday that the United States still believes that Pyongyang did not test a hydrogen bomb.

(This version of the story corrects to show components possibly tested on Jan. 6)

(Reporting by Eric Beech)