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North Korea launches ballistic missile, Japan and South Korea say

Seoul, South Korea(CNN) North Korea fired a ballistic missile into the waters off its east coast on Wednesday, Japan and South Korea have reported.

The missile was launched from Sunan, an area of the North Korean capital of Pyongyang, according to South Korea's Joint Chiefs of Staff.

Meanwhile, Japanese Deputy Defense Minister Makoto Oniki said the missile is estimated to have flown at a maximum altitude of about 800 kilometers over a distance of about 500 kilometers before falling into the sea outside of Japan's Exclusive Economic Zone.

The launch is North Korea's first since a military parade late on April 25, at which leader Kim Jong Un vowed to ramp up his development of nuclear arms.

North Korean leader Kim Jong Un at a military parade in late April.

Among the weaponry on show at the parade in Pyongyang was a Hwasong-17 intercontinental ballistic missile (ICBM), multiple giant rocket launchers, and a submarine-launched ballistic missile.

"True peace can be trusted and national dignity and national sovereignty can be guaranteed by the powerful self-defense force that can overcome the enemy," Kim said in a statement released by the state-run Korean Central News Agency (KCNA) after the parade.

He said his nuclear force's first mission was "to deter war," but if anyone tried to "to take away the fundamental interests of our country, our nuclear force will have no choice but to carry out its second mission." He did not elaborate on what that second mission would be.

Wednesday's test is North Korea's 13th of the year, including one on March 16 which is presumed to have failed.

By comparison, it conducted only four tests in 2020, and eight in 2021.

Among this year's tests was the launch of an ICBM on March 24, North Korea's first test of that weapon in more than four years.

This is a developing story.

CNN's Junko Ogura contributed to this report.