Donald Trump has called for the arrest of United Nations staffers he suspects orchestrated the “triple sabotage” of his appearance at the organisation’s annual world summit in New York.

President Donald Trump on Wednesday demanded an "immediate investigation" into what he claimed was "triple sabotage" during his United Nations visit on Tuesday, citing a stopped escalator and a teleprompter that wasn't working.

It was perhaps an ominous sign when the first thing President Donald Trump said in his United Nations General Assembly speech Tuesday was that his teleprompter was broken.

Sir Keir Starmer also said he supported Mayor Sir Sadiq Khan following Donald Trump's statement to the UN General Assembly in New York on Tuesday. Trump had told the meeting that the city had a "terrible mayor" and had been "changed".

Trump used the embarrassing incidents to portray the global body as dysfunctional but the UN says neither one was its fault.

World leaders reacted to Donald Trump's blunt U.N. speech where he claimed to have ended seven wars and threatened tariffs over Russian energy purchases.

Trump has repeated a version of this claim for months. In his U.N. speech, Trump listed the conflicts: Cambodia and Thailand, Kosovo and Serbia, the Democratic Republic of Congo and Rwanda, Pakistan and India, Israel and Iran, Egypt and Ethiopia, and Armenia and Azerbaijan.

The US President and First Lady were caught supposedly having an argument as they flew back to Washington DC after a chaotic day at the United Nations

US President Donald Trump all but nominated himself for the Nobel Peace Prize on Tuesday, claiming in his address to the United Nations that he has “ended seven un-endable wars,” which “were raging, with countless thousands of people being killed.

The Kremlin on Wednesday rejected the central arguments for U.S. President Donald Trump's rhetorical U-turn on the war in Ukraine, with Ukrainian President Volodymyr Zelenskyy warning the UN General Assembly that Russia's invasion has led to "the most destructive arms race in history.