"The U.N. must speak out", Haley said, adding that the USA will call for an emergency meeting on the issue in both the Security Council and the Human Rights Council.
Haley told reporters the United States was hearing reports that North Korea might be preparing to fire another missile. "I hope that does not happen but if it does we must bring even more measures to bear on the North Korean regime".
"The government of Iran is actively attempting to stop social media and other forms of communication that allow their citizens' voices to be heard", Haley said. "The U.N. must speak out".
Iran's missile program is not in breach of its nuclear deal and will continue despite objections from the United States, President Hassan Rouhani has said. She also condemned North Korean aggression, saying the USA will never accept a nuclear Pyongyang.
The year ended without any further clarity on the path to such dialogue - whether a simple pause in missile and nuclear testing would be sufficient, or whether the U.S. would require additional preconditions.
"We wish for peace in the country to be ensured, as soon as possible, and that common sense would prevail to prevent the escalation of the incidents, and that provocative rhetoric and external interventions would be avoided", the Turkish Foreign Ministry said in a statement. Soldiers are dangerously fleeing to South Korea.
"North Korea's participation in the Winter Games will be a good opportunity to showcase the national pride and we wish the Games will be a success".
Trump has frequently derided Kim as "rocket man".
President Donald Trump held up the development as proof the campaign of pressure was having a "big impact".
North Korea regularly threatens to destroy the United States, South Korea and Japan and tested its most powerful intercontinental ballistic missile in November, which it said was capable of delivering a warhead anywhere in the United States.
The offer for high-level talks next Tuesday had been discussed with the US, South Korea's Unification Minister Cho Myong-gyon said.
Haley singled out Iran in a New Year's message that also denounced "oppressive governments" in North Korea, Venezuela and Cuba.
Should the talks be held on January 9, it would be the first such dialogue since a vice-ministerial meeting in December 2015.
Haley's comments implied a return to the state department's position earlier in 2017 when the official policy was that the regime would have to commit to putting its nuclear weapons programme on the negotiating table in any talks with the US.