DONALD Trump has warned North Korea will be "met with fire and fury" if the rogue state continues to threaten the United States.
The US president issued the staggering threat to war-hungry despot Kim Jong-un while on holiday at his golf course in Bedminster, New Jersey.
Mr Trump's comments came following reports the rogue state has successfully produced a nuclear warhead that can fit inside its missiles.
He said: "North Korea best not make any more threats to the United States.
They will be met with fire and fury like the world has never seen.
"He [Kim Jong-un] has been very threatening beyond a normal state.
"As I said, they will be met with fire and fury and, frankly, power, the likes of which this world has never seen before."
Kim's brutal regime is continuing to carry out a series of missile and nuclear tests in defiance of UN sanctions.
Earlier today, the Washington Post quoted US intelligence officials who fear Kim's nuclear programme has made a major breakthrough.
Analysis by the Defence Intelligence Agency said North Korea is now making missile-ready nuclear weapons, according to the newspaper.
One official said: "We have to take him [Kim] at his word and we need to be prepared to deal with it."
Just hours earlier, Japanese officials warned that North Korea could be ready to trigger a devastating nuclear war at any moment.
The country's Defence Ministry said: "It is possible that North Korea has already achieved the miniaturisation of nuclear weapons and has acquired nuclear warheads."
North Korea fired two intercontinental ballistic missiles (ICBMs) last month on lofted trajectories to land off Japan's west coast.
Pyongyang's Foreign Minister yesterday said the rogue state will never abandon its nuclear ambition as long as the US remains "hostile".
Ri Yong-ho told the ASEAN Regional Forum: "We will, under no circumstances, put the nukes and ballistic rockets on the negotiating table.
"Neither shall we flinch an inch from the road to bolstering up the nuclear forces chosen by ourselves unless the hostile policy and nuclear threat of the US against the DPRK are fundamentally eliminated."
US Secretary of State Rex Tillerson had earlier said: "The best signal that North Korea could send that they’re prepared to talk would be to stop these missile launches."
North Korea's state-run news agency KCNA said the country's terrifying missile launches were a "stern warning to the US".
The news agency said: "There is no bigger mistake than the United States believing that its land is safe across the ocean.
"[North Korea] will make the US pay dearly for all the heinous crimes it commits against the state and people of this country."