North Korean leader Kim Jong Un said an elevated U.S. security partnership with South Korea and Japan poses a grave threat to his country and vowed to further bolster his nuclear weapons program, state media reported Sunday.

North Korean leader Kim Jong Un said an elevated US security partnership with South Korea and Japan poses a grave threat to his country and vowed to further bolster his nuclear weapons programme, state media reported.

North Korean leader, Kim Jong Un on Sunday, faulted trilateral military cooperation among the United States, Japan and South Korea for raising tensions in