State-controlled media slammed America’s recent decision to fly two supersonic bombers over the Korean Peninsula.
The B-1 bombers were escorted by South Korean fighter jets as they performed a low-pass over an air base near the South Korean capital of Seoul last month.
But Kim Jong-un’s media branded the move a “hysteric fit” and warned against such “provocations”.
North Korea’s KCNA news agency said: “The day the DPRK is provoked means the end of the US.”
Earlier this week, government-run newspaper Rodong Sinmun declared Donald Trump was sitting on the “knife edge of life and death” and that he should brace himself for “gift packages” from Kim.
An editorial said: “Every minute and every second, the new reality that US mainland is on the knife’s edge of life and death is forcing US administration to wave a white flag and fundamentally change her North Korea policy.
“If the US still refuses to accept such a realistic demand and doggedly pursue hostile policy against North Korea in order to save face, she will receive unexpected ‘gift packages’ which we will continue to send.”
It is believed the so-called “gift packages” are nuclear missiles.
The UK ambassador to the UN, Matthew Rycroft, this week warned that Kim’s nuclear ambitions could be “catastrophic for the world”.
Rycroft said North Korea’s development of intercontinental ballistic missiles (ICBMs) had significantly extended the threat posed by the secretive regime.
Calling on North Korea to “halt and reverse” its nuclear and missile development programmes, Rycroft said the country should “forgo the path of provocation”.
The ambassador spoke as the UN Security Council backed an escalation of sanctions against Pyongyang.
He said: “North Korea bears full responsibility for the measures we have enacted today.