A North Korean missile flies over Hokkaido, Japan, triggering the J-Alert system, following a similar event on 29 August.
North Korea fires a Hwasong-18 intercontinental ballistic missile into waters near Japan. This comes a day after North Korea threatened the United States, claiming that an American spy plane entered the country's exclusive economic zone multiple times on Monday.
North Korea launches a suspected ballistic missile towards Japan with the Japanese government warning residents in Hokkaido and Aomori prefectures to immediately seek shelter. It later landed in the Pacific. The launch comes after a series of balloon launches and placard protests from South Korea and various military exercises involving the US.
North Korea fires a Hwasong-12 ballistic missile which flies 2,700 km, passing over Hokkaido, northern Japan, prompting the activation of the nationwide J-Alert warning system. This is first time since 2009 that a North Korean missile has passed over Japanese territory.
U.S. Ambassador to the United Nations Nikki Haley says North Korea's launch of a missile over Japan was "absolutely unacceptable and irresponsible" and that North Korea has "violated every single U.N. Security Council resolution that we've had, and so I think something serious has to happen."
Japan deploys two MIM-104 Patriot surface-to-air missile interceptor systems in Tokyo in preparation for any North Korean ballistic missiles potentially heading for the city. The deployment comes amid concerns of an imminent North Korean missile launch following the detection of "increased activity" at a North Korean missile facility.