Donald Trump has demanded an investigation into what he called a triple sabotage during his visit to the United Nations General Assembly on Wednesday.
In a post on social media, the US president referred to an escalator abruptly stopping as he and First Lady Melania Trump stepped on, a teleprompter malfunctioning during his speech, and an audio issue in the auditorium.
A UN official said the sound system was designed to allow people to hear translated speeches through earpieces.
The UN previously said a safety mechanism might have been triggered by Trump's videographer who had been travelling backwards up the escalator while the teleprompter belonged to the US delegation.
Trump criticised the incidents on Truth Social and said he was sending a letter to the UN Secretary General Antonio Guterres demanding an immediate probe.
A REAL DISGRACE took place at the United Nations yesterday - Not one, not two, but three very sinister events! he wrote.
Mike Waltz, US ambassador to the UN, echoed the president's call for an official probe, saying the incidents were unacceptable.
On Wednesday, White House press secretary Karoline Leavitt raised concerns that someone deliberately stopped the escalator.
After the escalator mishap, Trump ran into more technical difficulties when he said the teleprompter was not working - although it was restored towards the end of his address.
In response to Trump's comments, a UN official said: ''The sound system was designed to allow people at their seats to hear speeches being translated into six different languages through earpieces.
