United States troops began delivering a missile defence system that has infuriated China to a deployment site in South Korea Wednesday, amid heightened tensions over the North's nuclear ambitions.
The draft resolution would be put to a vote if North Korea carries out a fresh nuclear or long-range missile test, an unnamed diplomatic sources told Yonhap News Agency on Wednesday.
He said the USA military is also weighing whether it needs to install new missile interceptors on Hawaii.
The Trump administration has taken the unusual step of calling the entire US Senate to a meeting at the White House, for a briefing on North Korea with the US secretaries of Defense and State. Though the missile exploded seconds after launch, the test occurred hours after the country rolled out intercontinental ballistic missiles and other military hardware at a huge parade to celebrate the birthday of the country's late founder, Kim Il Sung, grandfather of current leader Kim Jong Un.
Earlier this month, the Trump administration announced it would be sending the USS Vinson, an aircraft carrier, to the Korean Peninsula, after United States officials said they anticipated a fresh round of nuclear tests and missile launches.
North Korea's military has staged a "large-scale artillery drill" to mark the founding of the country's army, amid rising tensions with the West.
The meeting, in addition with an increased US military presence in the Asia Pacific, is just part of an all-hands-on-deck approach to how the Trump administration will tackle North Korea's nuclear ambitions.
South Korea has said China has discriminated against some South Korean companies in retaliation against the deployment.
The countries want to include the clause in a United Nations Security Council resolution draft, among other measures such as prohibiting North Korea from exporting its labour.
FILE PHOTO: A Terminal High Altitude Area Defense (THAAD) interceptor is launched during a successful intercept test, in this undated handout photo provided by the U.S. Department of Defense, Missile Defense Agency.
Relations between North Korea and the US and South Korea have deteriorated in recent months, as the rhetoric and military posturing on both sides has increased.
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Noting that the ships had eventually gone on to sail toward the Korean Peninsula, Harris said they are still en route.
"It helps in no way to achieve the denuclearisation of the peninsula and regional peace and stability", he said, adding China would "take necessary measures to safeguard its own interests".
They also agreed that China plays a key roles in pressuring North Korea to abandon its nuclear and missile programs, something President Trump and his administration have continuously emphasized.
The USS Michigan, a nuclear-powered submarine, arrived Tuesday at the South Korean port of Busan for what was described as a routine visit to rest crew and load supplies.
Asked about the threshold for USA action, Haley told American broadcaster NBC that "if you see him attack a military base, if you see some sort of intercontinental ballistic missile, then obviously we're going to do that".
US officials said Wednesday's briefings will center on three key issues: intelligence about the North's capabilities; USA response options, including military ones; and how to get China and other countries to enforce existing economic sanctions on Pyongyang, along with ideas for new penalties.
King called on North Korea's ally, China, to ramp up the diplomatic pressure.
North Korea routinely accuses the United States of readying for an invasion, and threatens pre-emptive strikes to stop the U.S.
The earlier-than-expected move prompted protests by hundreds of local residents and was denounced by the frontrunner in South Korea's presidential election on May 9.
Nikki Haley, Trump's U.N. ambassador, said the United States is not looking for a fight with Kim and would not attack North Korea "unless he gives us reason to do something".
President Donald Trump himself dropped by at the briefing, which was addressed by his top national security aides-secretary of state Rex Tillerson, defence secretary James Mattis, director of national intelligence Dan Coats and chairman of the joint chiefs of staff Gen Joe Dunford.