On Sunday, just one day after parading possible new missiles in its capital, North Korea tried to launch a missile.
White House national security adviser H. R. McMaster said on Sunday that North Korea's missile test was provocative and that the United States was working with its allies, including China, to develop a range of options.
The North Korean missile, which was sacked from the Sinpo area, exploded nearly immediately, according to military officials in South Korea and the US.
The information of the failed missile launch didn't come from North Korean Govt, it came from the South Korean defence ministry which released a statement.
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Some of the weapons on show included nuclear-capable missiles that have previously been successfully tested. The comments come after a failed missile test launch by North Korea, and a massive military parade.
With US Vice President Mike Pence also touching down in Seoul in South Korea, it is clear that US officials are making a concerted diplomatic push to try and get the situation in North Korea under control and reassure allies in the region. Chinese Foreign Minister Wang Yi last week said the conflict over North Korea could break out "at any moment" and warned there would be "no winner" in any war. China would also face greater pressure from the U.S. to take further action, including ratcheting up its sanctions against Pyongyang, he added. "The president has no further comment".
"The President and his military team are aware of North Korea's most recent unsuccessful missile launch".
South Korea's top presidential advisor for security affairs, Kim Kwan-jin, planned to convene a meeting of national security council at the presidential office Cheong Wa Dae on Sunday morning.
The failed show of force by the DPRK came amid mounting tensions on the Korean Peninsula, which was caused by the USS Carl Vinson and its accompanying warships that have re-routed and headed to the peninsula about a week earlier.
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Kim has overseen three nuclear tests and a string of missile and rocket launches since taking over after the death of his father, dictator Kim Jong Il, in late 2011. China is North Korea's only major ally.
China, which Trump has urged to do more to rein in North Korea, has spoken out against its weapons tests and has supported United Nations sanctions.
That was the site of a ballistic missile test earlier this month, in which the projectile fell into the Sea of Japan, also known as the East Sea.
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