N. Korea missile launch would be 'huge mistake'

US Secretary of State John Kerry said Friday that North Korean leader Kim Jong-Un would be making a "huge" mistake in pushing ahead with an expected missile launch at a time of soaring tensions.

"If Kim Jong-Un decides to launch a missile, whether it's across the Sea of Japan or any other direction, he will be choosing wilfully to ignore the entire international community," Kerry told reporters in Seoul.

"It will be a huge mistake for him to do that because it will further isolate his country," Kerry said, adding that North Koreans want food, not a leader "who wants to flex his muscles".