PYONGYANG North Korea said it will strengthen self-defensive nuclear weapons capability in a decision adopted at a congress of its ruling Workers' Party congress, its KCNA news agency reported on Monday, in defiance of U.N. resolutions.
Isolated North Korea has come under tightening international pressure over its nuclear weapons programme, including tougher U.N. sanctions adopted in March backed by lone major ally China, following its most recent nuclear test in January.
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