North Korea yesterday threatened to bring its denuclearization efforts to a halt in an apparent warning to Seoul and the other six-party talks members.

The North also fired several short-range missiles into the West Sea, further provoking the new South Korean administration, which has vowed to be sterner with Pyongyang.

“If the United States continue to claim something out of nothing and delay a solution to the nuclear problem, it may bring grave consequences to the immobilization of nuclear facilities that has managed to come this far,” a statement by a North Korean Foreign Ministry spokesman said.

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