The United States of America should be getting ready for a ‘severe lesson’ from North Korea.

North Korea is obviously angry that the United Nations has placed new and tougher sanctions on it because of the nuclear programme it is pursuing.

The country is now threatening to deal with the US, with its nuclear force if America dares take military action against it.

This message of defiance was the first major response to the US-drafted sanctions, which the UN Security Council unanimously approved over the weekend and which could cost North Korea $1 billion a year.

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"We will under no circumstances put the nukes and ballistics rockets on (the) negotiating table," North Korean Foreign Minister, Ri Yong-Ho said in a statement released in the Philippine capital Manila where he was attending a regional security forum.

"Neither shall we flinch even an inch from the road to bolstering up the nuclear forces chosen by ourselves unless the hostile policy and nuclear threat of the US against the DPRK (North Korea) are fundamentally eliminated," he added.

In an earlier statement released via its official KCNA news agency, North Korea threatened to make the United States "pay the price for its crime... thousands of times" for drafting the sanctions.

Ri was among two dozen ministers attending the security forum, including Chinese Foreign Minister Wang Yi, US Secretary of State Rex Tillerson and top diplomats from other Asia-Pacific nations.