North Korea has vowed to retaliate and make "the US pay a price" for drafting fresh UN sanctions over its banned nuclear weapons programme.
The sanctions, which were unanimously passed by the UN on Saturday, were a "violent violation of our sovereignty.
Separately, South Korea says the North has rejected an offer to restart talks, dismissing it as insincere.
The sanctions will aim to reduce North Korea's export revenues by a third.
The UN Security Council decision followed repeated missile tests by the North which have escalated tensions on the peninsula.
What are the new sanctions?
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