North Korea has launched a ballistic missile towards Japan's eastern sea, South Korean officials have said.
It comes as the fourth missile fired by the country on Thursday, after setting a record the previous day with 23 launches.
Earlier this week, an intercontinental ballistic missile forced the Japanese government to issue evacuation alerts.
The projectiles fired, including a suspected intercontinental ballistic missile, triggered alerts prompting some residents in South Korea to seek shelter, too.
The latest series of weapons tests has raised tensions between east Asian countries, with North Korea also making veiled threats to use nuclear weapons against the United States.
On Wednesday, the Japanese government initially said at least one of the missiles flew over its northern territory, but later revised its assessment, saying there were no overflies.
Evacuation alerts were triggered in three northern prefectures with residents told to find shelter - there have been no reports of damage or injuries.
Prime Minister Fumio Kishida said North Korea's missile launches are "outrageous and absolutely intolerable." He has also convened the National Security Council in response.
It wasn't immediately clear whether the launch was successful.
Japan's Defense Minister Yasukazu Hamada announced similar flight details but said that his military lost track of the weapon after it "disappeared" in skies above waters between the Korean Peninsula and Japan.
Choi Yong Soo, a South Korean Navy captain who handles public affairs for Seoul's Defense Ministry, didn't answer directly when asked whether the military believes the launch might have failed with the missile exploding in mid-air, saying that the test was still being analysed.
Citing anonymous military sources, South Korea's Yonhap news agency reported that the missile possibly failed to maintain normal flight following a stage separation.
