North Korea warned several countries on Monday that a nuclear war could start at any moment. The dystopian nation also warned other countries to not participate in any military drills with the United States, or they would face retaliation from the rogue regime.

The threat was issued at the United Nations where North Korean Deputy U.N. Ambassador Kim In Ryong prepared remarks for a speech on nuclear weapons at a U.N. committee. He ended up not reading the threat out loud.

“As long as one does not take part in the U.S. military actions against the DPRK (North Korea), we have no intention to use or threaten to use nuclear weapons against any other country,” read the North Korean ambassador’s prepared remarks, according to Reuters. “The entire U.S. mainland is within our firing range and if the U.S. dares to invade our sacred territory even an inch it will not escape our severe punishment in any part of the globe,” the statement said.

Fox News reported that the confrontation between the U.S. and North Korea has peaked following a number of nuclear missile tests threatening U.S. allies in the region and hostile exchanges between President Donald Trump and North Korean dictator Kim Jong-un. Just when tensions appear to be at a breaking point, one side ramps it up a little.  Perhaps North Korea is all bark and no bite. After all, their threats have been empty so far.

Kim told a U.N. disarmament commission that his country is the only state threatened by “such an extreme and direct nuclear threat” from the U.S. and accused the U.S. government of trying to stage a “secret operation aimed at the removal of our supreme leadership.” Threats of war so far, have been ineffective at cooling the rapidly heating up of tensions.

“Unless the hostile policy and the nuclear threat of the U.S. is thoroughly eradicated, we will never put our nuclear weapons and ballistic rockets on the negotiation table under any circumstance,” the North Korean official told the committee.