On Sunday, North Korea said it detonated a hydrogen bomb designed for a long-range missile and called it a "perfect success", inviting worldwide condemnation and promises of tougher US sanctions.
Haley said North Korean dictator Kim Jong-Un's action cannot be seen as defensive and he wants to be acknowledged as a nuclear power. "But being a nuclear power is not about using those terrible weapons to threaten others."
The Indian-origin US ambassador to the UN said that his abusive use of missiles, and his nuclear threats show that he is "begging for war".
"War is never something the US wants. We don't want it now. But our country's patience is not unlimited. We will defend our allies and our territory," she said.
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The idea that some have suggested of a so-called freeze- for-freeze is insulting, she said.
"When a rogue regime has a nuclear weapon and an ICBM (Inter-continental Ballistic Missile) pointed at you, you do not take steps to lower your guard. No one would do that. We certainly won't," she said, adding time has come to exhaust all diplomatic means to end this crisis.
Haley and her counterparts from Japan, France, the UK, and the South Korea requested the emergency meeting in response to North Korea's latest nuclear test.
"To the members of the Security Council, I must say: enough is enough," she said.
British Ambassador to the UN Matthew Rycroft said North Korea has created a deeply dangerous and unstable situation.
"The UK will work with our partners on this Council and beyond to tackle the challenge," he said.
"But returning to dialogue without a serious sign of intent from Pyongyang would be a set up to failure. North Korea must change course to allow a return to dialogue. Were they to do so, the opportunity exists to end this crisis. Until that moment, we must stay the course on sanctions, and continue, as the Secretary-General has called for, to present a united front," Rycroft said.
Ambassador Koro Bessho of Japan said it was clear how belligerent and dangerous the North Korean actions were, posing a problem, not only for that country's neighbours, but the entire international community.
In that context, he stressed the need for the Council to swiftly adopt a new resolution with further robust sanction measures Firmly supporting the denuclearization of the Korean Peninsula, the Chinese Ambassador Liu Jieyi strongly urged Pyongyang to comply with international measures.
The situation on the Peninsula had deteriorated, he said, stressing that China would never allow chaos or war to erupt.
Haley told the 15-membered body that US will be circulating a draft resolution soon, with the expectation to have it passed by Monday - September 11.
"Now is the time to take measures that are strong and robust enough to compel North Korea to seriously engage in dialogue. The new resolution must include not only additional measures to further block funds that could possibly flow into North Korea's illegal WMD program, but also truly biting and robust measures such as cutting off crude oil and oil product supplies," he said.
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