North Korea warns US and South of nuclear build-up

North Korea said on Sunday it will bolster its atomic arsenal and was no longer bound by the cease fire that ended the Korean War due to joint US-South Korean military drills, which start this week.

The comments come just days after a senior diplomat from China, the destitute North's biggest benefactor, said Beijing wants stalled international talks aimed at ending North Korea's nuclear arms activities to restart before July. (Reuters)