|USA: ICBM is 'new escalation of threat'|
North Korea's test of an intercontinental ballistic missile was a "new escalation of threat" to the world, US secretary of state Rex Tillerson has warned.
Calling for Pyongyang's "provocative" test to be discussed by the UN Security Council, Mr Tillerson said the White House intends to "enact stronger measures to hold DPRK accountable".
The secretary of state added that the US "will never accept a nuclear-armed North Korea" and said President Trump and his national security team are "continuing to assess the situation".
Kim Jong Un celebrates the launch with military officers
|Kim Jong Un celebrates the launch with military officers|
In response, US and South Korean soldiers fired "deep strike" precision missiles into South Korean territorial waters.
Military officials said the launches were a show of force to demonstrate US-South Korean solidarity.
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|The missile reached an altitude of 2,802km and flew 933km, North Korea claimed|
Analysts said North Korea's "landmark" Hwasong-14 missile, which was launched from North Pyongan Province, could reach Alaska.
North Korea said the ICBM reached an altitude of 2,802km (1,740 miles) and flew 933km (580 miles) for about 40 minutes before landing in the Sea of Japan.
Japan's data appeared to back up these claims, with the defence ministry claiming the altitude "greatly exceeded" 2,500km (1,550 miles).
According to North Korean state media, the missile is capable of carrying a "large, heavy nuclear warhead" that can withstand re-entry into the Earth's atmosphere.
Kim Jong Un reportedly said the projectile was "as handsome as a good-looking boy", adding it was a "gift" to the US "to help break their boredom".
Shortly after the launch, President Trump tweeted: "Does this guy have anything better to do with his life?
"Hard to believe that South Korea and Japan will put up with this much longer. Perhaps China will put a heavy move on North Korea and end this nonsense once and for all!"
:: Key steps in North Korea's nuclear ambitions
Foreign Secretary Boris Johnson also condemned the launch and urged China to step up pressure on North Korea.
"As this event shows, there is absolutely no grounds for complacency," Mr Johnson told Sky News.
|North Korea: A step closer to war?|
However, Pentagon spokesperson Dana White said the US "remains prepared to defend ourselves and our allies and to use the full range of capabilities at our disposal".
She added: "Our commitment to the defence of our allies, the Republic of Korea and Japan, in the face of these threats, remains ironclad."
A meeting of the 15-member UN Security Council is likely to go ahead on Wednesday, a spokesman for the US mission said.