"We have no idea about what actions could be taken as it will be ordered by leader Kim Jong Un.", Ri Yong Ho.
The leader also said he was "thinking hard" about how he meant to respond, but noted that Trump would "face results beyond his expectations".
North Korea's nuclear weapons programme has seen heightened tensions in recent months, with the US President warning of "fire and fury" if it continued to act aggressively towards the United States and its allies.
Trump initially wrote about domestic policy, threatening Republicans who disagree with the his plan to repeal Obama's health care bill.
US President Donald Trump on Friday warned "madman" North Korean leader Kim Jong Un that he would be "tested", the latest in an exchange of insults between the two.
Trump Announces More Sanctions Over North Korea's Nuclear Buildup
Kim, of course, did not explicitly say the word himself.
Kim's statement was a unique escalation itself, marking the first time Kim or his predecessors had addressed the world directly, according to Seoul's Unification Ministry, which is responsible for North-South relations. Also read: Can North Korean Hydrogen Bomb Evaporate New York in Case of Surface Blast?
A day earlier, Trump announced new sanctions on North Korea that aim to cut off sources of revenue for the regime's nuclear and missile programs. It will further escalate the war of words between the adversaries as the North moves closer to perfecting a nuclear-tipped missile that could strike America.
China is the biggest ally of North Korea with nearly 90% of global trade in the small country.
In recent months, North Korea has launched a pair of intercontinental missiles believed capable of striking the continental USA and another pair that soared over Japanese territory. Gen. Kim Rak Gyom, commander of the North's strategic rocket forces, was quoted new report from the state broadcaster as saying Trump had showed his "senility" again.
The analyst concluded by saying that North Korea's "belligerent rhetoric" stems from its concern about U.S. threats of regime change and the complete destruction of the country.
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A possible crossroads, if you like, where things could go backwards, sideways, or hopefully onwards after a slow and shaky start. Barry credits his longevity to avoiding serious injury and to support from some now-retired former teammates. "No.