North Korea on Sunday fired a medium-range ballistic missile into the East Sea in an apparent provocation to boast its military readiness and test the response from the new Donald Trump administration, the South Korean military said.

"The missile appears to be a Rodong or a modified version of the missile. Its flight distance indicates it is not an intercontinental ballistic missile (ICBM)," Seoul's Joint Chiefs of Staff (JCS) said in a press briefing held five hours after the missile launch. The missile was launched at around 7:55 a.m. from Banghyon air base in the western province of North Pyongan Province.

The Rodong missile has a range of up to 1,500 kilometers, and can hit South Korea and Japan.

Seoul and Washington are jointly conducting an assessment to find out what exact type of a missile was launched by Pyongyang, the JCS said. It didn't rule out the possibility that the North launched an entirely new type of missile.

The JCS also said the missile was launched at a steep angle, reached the height of 550 km and then flew about 500 km before splashing into its eastern sea.

It was the first test-firing of a North Korean missile since Trump became U.S. president on Jan. 20., and the country's first major provocation in 2017.

South Korea, the U.S. and Japan strongly condemned North Korea's missile test, issuing a statement or holding a press conference to deliver their messages against the North's continued provocations.

"The missile launch is an explicit and clear violation of the United Nations Security Council resolutions banning tests (that can contribute to the advancement of nuclear weapons delivery capability). It is aimed at drawing global attention to the North by boasting its nuclear and missile capabilities," the JCS said in a text message.

"This demonstrates the irrational nature of the Kim Jong-un regime that has been fanatically obsessed with its nuclear and missile development. Pyongyang's repeated provocations would only strengthen the international community's resolve to achieve the North's denuclearization," the foreign ministry said in a statement.

In an unscheduled joint press conference in Florida on Friday (U.S. time), U.S. President Donald Trump said the U.S. stands behind Japan "100 percent." Japanese Prime Minister Shinzo Abe denounced the North's missile launch as "absolutely intolerable" and urged the communist state to comply with all U.N. Security Council resolutions.

The Banghyon base is the same place where North Korea test-fired Musudan missiles on Oct. 15 and 20. Last year, the North tested a total of eight Musudan missiles believed to be capable of reaching the U.S. territory of Guam.

In the one "successful" Musudan launch to date, the missile flew some 400 km, well short of its maximum range, but the flight distance was because the North fired the missile at a high angle in order to avoid breaching Japan's airspace.

Back then, the Pentagon confirmed after the launch that the missile reached an altitude exceeding 1,000 kilometers.

North Korean leader Kim said in his annual New Year's address that the country's preparations for launching an ICBM have "reached the final stage." The remark was seen as an apparent threat that Pyongyang was close to acquiring the know-how to strike the continental United States.

In response to the ICBM threat, Trump pledged last month to stop the North from mastering such ICBM capabilities, saying that the North's development of a nuclear missile capable of striking the U.S. "won't happen," though he didn't say how he would prevent it.

There were earlier reports that the North had placed two unidentified missiles on mobile launchers for apparent test-firing.

This photo first released on Jan. 24, 2017, by North Korea's state-run news organization, KCNA, shows a Musudan intermediate-range ballistic missile being test-fired from a launcher in North Korea on June 22, 2016. (For Use Only in the Republic of Korea. No Redistribution) (Yonhap)

Meanwhile, the Japanese government confirmed the North's missile test and South Korea's presidential office called a national security meeting.

Japan's Chief Cabinet Secretary Yoshihide Suga reportedly said the missile launched by Pyongyang didn't hit Japanese waters.

South Korea's Acting President and Prime Minister Hwang Kyo-ahn said at a meeting convened in Seoul that the country will make a "corresponding" response to punish Pyongyang for its latest missile launch in tandem with the international community. (Yonhap)

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