North Korea says it has successfully tested a new type of intercontinental ballistic missile (ICBM) that can reach the whole of continental United States.
State television said Pyongyang had achieved its mission of becoming a nuclear state.
The Hwasong-15 missile, described as its “most powerful”, was launched in darkness early on Wednesday.
It landed in Japanese waters but flew higher than any other missile the North had previously tested.
The test, which defied international sanctions imposed over the North’s weapons programme, drew swift international condemnation, with the UN Security Council due to convene an emergency session.
South Korea responded by carrying out live-fire exercises, launching one of its own ballistic missiles.
News of the launch was announced on state television in a special broadcast at midday, as well as in a report released by state news agency KCNA.
Pyongyang says the missile reached an altitude of 4,475km (2,780 miles) and flew 950km in 53 minutes, close to independent estimates made by South Korea’s military.
The projectile, fired at a steep incline, did not fly over Japan as some have done in the past, and landed about 250km short of its northern coast, according to Japanese officials.