Carney: North Korean nuclear threat 'a familiar pattern'

On Wednesday, the Pentagon said it was moving an advanced missile defense system to Guam in response to nuclear threats from North Korea.

In a statement published by the North Korean state news agency and reported by AFP, a spokesman from the General Staff of the Korean People's Army warned that it would respond to American provocations with "cutting-edge smaller, lighter and diversified nuclear strike means."

"The merciless operation of (our) revolutionary armed forces in this regard has been finally examined and ratified," the statement continued, adding that the United States "had better ponder over the prevailing grave situation."

The White House warned such provocations would only further damage relations with the rest of the international community.

For more on Carney's remarks, click here.