South Korean President Moon Jae-in has strongly condemned rival North Korea's missile test-launch as a "clear" violation of U.N. Security Council resolutions and a "serious challenge" to worldwide peace and security.
The type of missile is being assessed, but the flight was not consistent with an intercontinental ballistic missile, according to a statement from U.S. PACOM spokesman Major Rob Shuford.
The White House says North Korea has been "a flagrant menace for far too long".
North Korea charged that South Korea and the USA had "corrupted and bribed" a North Korean logger in 2014 working in eastern Russian Federation, who had been infiltrated into North Korea to carry out the assassination attempt.
North Korea has accused the United States of America, USA, and neighbours, South Korean of a joint plot to kill its President, Kim Jong-un.
The launch at 5:27am Seoul time (4:27am Singapore time), from a region named Kusong located north-west of Pyongyang, came two weeks after North Korea fired a missile that disintegrated minutes into flight, marking its fourth consecutive failure since March. That's a little less than the distance between North Korea and the U.S. Pacific island of Guam. The missile flew about 435 miles to the sea of Japan. Those are the missiles the U.S.is most anxious about, with the ability to reach the U.S. West Coast.
Abe added that the three countries also seek to cooperate with China and Russian Federation to pressure North Korea to comply with U.N. Security Council resolutions to stop further missile and nuclear tests.
"Despite strong warning from the global community, North Korea launched a ballistic missile again", Abe said, adding "This is totally unacceptable and we strongly protest it".More news: What to Watch for: Can Cam Talbot continue dominance in Game 3?
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Friends and foes alike have all warned North Korea to end the tests, which are regarded as part of an effort to develop a nuclear weapon that can be mounted on a missile.
Earlier, Japanese officials said the missile landed in the Sea of Japan but outside the country's exclusive economic zone.
This is the first provocative move from North Korea since South Korea appointed Moon Jae-in as the country's new President on Wednesday.
"The president said while Soutgh Korea remains open to the possibility of dialogue with North Korea, it is only possible when the North shows a change in attitude", a government spokesperson said.
Moon Jae-in says dialogue and pressure must be used to ease tensions on the Korean peninsula and stop the North's weapons pursuit. As the missile tests continue, it is not clear when or if Washington would decide on military action - or whether Seoul would try to block it.
Japanese Prime Minister Shinzo Abe told reporters that the launch was "absolutely unacceptable" and that Japan will respond resolutely. Japanese officials said it reached an unusually high altitude of 1,240 miles, which could indicate a new type of missile. She says more analysis was needed.
Moon is expected to meet U.S. President Donald Trump as early as next month to coordinate an approach toward the Kim Jong-un regime.