Trump and North Korea's leader Kim Jong Un have traded threats of war and personal insults in recent months as tensions remain high over the North's missile and nuclear threats.
Now the hermit state has joined near-universal condemnation of the US president's decision on al-Quds, calling it a "reckless, wicked act".
"Considering the fact that the mentally deranged dotard openly called for a total destruction of a sovereign state at the UN, this action is not so surprising", a foreign ministry spokesman was quoted as saying by the state-run KCNA news agency.
"But this move clearly shows to the whole world who is the destroyer of world peace and security, pariah and rogue in the international community", he said, using epithets usually reserved for the North.
Trump's declaration Wednesday to recognise al-Quds as Israeli regime's capital and relocate the United States embassy from Tel Aviv sparked anger across the Muslim world, and drew expressions of concern and disapproval from US allies.
According to the latest KCNA statement, the North "strongly condemns" the US move to recognise al-Quds as capital, and expressed "firm support and solidarity for Palestinians and Arab peoples struggling to win their legitimate rights".
"The US will be held accountable for all consequences from this reckless, wicked act", it added.