Frustrated U.S. lawmakers called on Tuesday for a high-powered response to North Korea's nuclear tests, saying Washington should act alone if necessary to stiffen sanctions on companies from China, Russia and any country doing business with Pyongyang.
The North Korean military may have enough fuel stockpiled to continue normal operations in the meantime.
Germany would lend its weight to a diplomatic push to end North Korean nuclear weapons and missile development along the lines of a past deal with Iran, Chancellor Angela Merkel said yesterday.
Professor Joseph DeThomas of Pennsylvania State University, a former US ambassador and State Department official who dealt with North Korea, told The Associated Press on Friday that the USA demand for quick council action was "an indicator of how the administration thinks time has run out".
U.S. President Donald Trump is considering the deployment of tactical nuclear weapons in South Korea after North Korea's latest nuclear test, breaking away from the doctrine of denuclearizing the Korean Peninsula.
"The DPRK is ready and willing to use any form of ultimate means", the statement said, referring to the country by its acronym.
North Korea has threatened the United States with the "greatest pain" it has ever suffered following new sanctions imposed by the United Nations.
The resolution also bans North Korea from exporting all textiles anywhere in the world, as second largest export commodity.
■ According to a recent study by the Nautilus Institute think tank, a massive cutback in the flow of oil from China would definitely hurt the North Korean economy, and especially average citizens.
"This ban will eventually starve the regime of an additional $500 million or more in annual revenues".
Ms Haley last week called the proposal "insulting" and said the USA has maintained that North Korea needs to halt their activities before talks can take place.
"North Korea needs to realise that a reckless challenge against worldwide peace will only bring about even stronger global sanctions against it", the Blue House said.
These sanctions will have long-drawn effects on North Korea.
The sanctions come days after a nuclear test by North Korea. USA administration did not agree to this proposal. If China agreed to impose the sanctions, it could potentially cripple the economy of North Korea - which gets almost all of its oil supply from China, with a small amount also provided by Russian Federation.