North Korean has warned on Monday it would launch a pre-emptive attack against the United States as about 10,000 people rallied to denounce a newly endorsed U.N. Security Council Resolution.

Those who provoke once will not be able to escape its unimaginable and merciless punishment, the North Korean official news agency (KCNA) said.

Under the present situation where the Korean People's Army (KPA) is technically at war with the U.S. imperialists, and as the armistice agreement has lost its legal binding force, the KPA will promptly exercise the right to a pre-emptive strike to beat back the enemies' slightest provocation, said Pak Jae Gyong, vice-minister of the North Korea People's Armed Forces.

He also threatened to deliver blows to the vital parts of the U.S. and wipe out all its imperialist aggressor troops on matter where they are in the world.

Meanwhile, Kim Ki Nam, secretary of the Central Committee of the Workers party told the rally that the U.N. resolution was another grave provocation.

The U.N. Security Council on Friday unanimously approved wider sanctions against the North over its May 25 nuclear test.

The resolution bans all weapons exports from the North Korea and arms imports into the country. It has authorized U.N. member states to inspect the North Korea's sea, air and land cargoes, requiring them to seize and destroy any goods transported in violation of the sanctions.

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