Japan’s Defense Ministry said on Saturday.
Department officials said more details are still being analyzed.
Japan’s national broadcaster NHK said multiple missiles fired from the north were believed to have landed in the Sea of Japan and outside Japan’s exclusive economic zone.
North Korea’s escalating missile launches include one after US Vice President Kamala Harris’s visit to South Korea and the first anti-submarine training in five years between the US, South Korea and Japan.
North Korea has significantly improved its missile technology in recent years and has a wide range of nuclear-capable missiles that could put both the United States and its allies South Korea and Japan in the space of about a year. prominent way.
This year, North Korea has conducted missile tests more than 20 times, a record number, as it refuses to resume long-stalled nuclear talks with the United States.
North Korea is also pushing to improve its ability to fire missiles from submarines. South Korean officials say they have recently detected signs that North Korea is preparing to test-fire a missile from a submarine.