"This highly provocative act poses a grave threat to international peace and security and blatantly violates multiple UN Security Council resolutions," John Kerry said in a statement.
North Korea's nuclear test was a "highly provocative act" that threatened international peace and security, US Secretary of State John Kerry said on Wednesday in condemning Pyongyang's fourth nuclear test.
"This highly provocative act poses a grave threat to international peace and security and blatantly violates multiple UN Security Council resolutions," he said in a statement.
"We do not and will not accept North Korea as a nuclear armed state, and actions such as this latest test only strengthen our resolve," he said.
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