The announcement came after the South Korean military announced that North Korea launched two short-range ballistic missiles off its eastern coast from the Wonsan area on Sunday, one flying about 450 kilometers and the other exceeding 600 kilometers.
According to the South Korean Yonhap News Agency, images released by North Korean media suggested that the test may have been for a hypersonic missile, as the monitor screen showed the phrase "Hwasongpo-11ma-1" with numbers indicating a flight time of 446.1 seconds, a speed of 2146 meters per second, a height of 35.8 kilometers, and a range of 908.2 kilometers, which differ from those announced by the South Korean military.
This test comes as part of a series of repeated missile tests conducted by North Korea over the past few weeks, often coinciding with joint military exercises between South Korea, the United States, and Japan, or in response to them.
On September 12, Pyongyang launched several short-range ballistic missiles from the Wonsan area towards the East Sea, covering about 250 kilometers, the day after the end of the trilateral "Freedom Edge" exercises.
A week earlier, on August 20, North Korea launched about 10 short-range ballistic missiles from the Pyongyang area towards the East Sea, with a range of about 300 kilometers, at a time when the annual "Ulchi Freedom Shield" exercises were being conducted between Seoul and Washington.
August 12 saw the launch of a ballistic missile flying over 700 kilometers, preceded by a similar missile launch on August 6.
North Korea has repeatedly condemned these maneuvers, describing them as "war drills" and a "threat" to its security, asserting that its missile tests are in response to them, while Seoul, Washington, and Tokyo have called on Pyongyang to halt these activities, which they consider a violation of UN Security Council resolutions.