A handful of protestors from the White Pendragons group had attempted to make a citizen’s arrest at the start of Mr Khan’s speech to the Fabian Society in London.
The Mayor of London seized the opportunity to make a dig at the US President.
He told delegates at the London conference: “It is a pleasure to be here even though we were distracted by the actions of what some would call very stable geniuses.”
London mayor Sadiq Khan made a dig at Donald Trump in his speech to the Fabian Society
Mr Trump previously described himself as a “very stable genius” after his mental ability was questioned.
The mayor and US President have clashed publicly a number of times over issues including counter terrorism and Mr Trump’s proposed state visit to the UK.
Mr Khan also tried to make light of the protest with a reference to Prime Minister Theresa May‘s Tory conference speech, which was interrupted by a prankster, saying: “On the plus side I wasn’t served with a P45.”
Video footage showed the moment the activists interrupted Mr Khan’s speech, just after the mayor was introduced to the stage.
One man could be heard addressing the audience with: “Ladies and gentlemen, we’re here today to make a non-violent, peaceful citizen’s arrest.”
Audience members started to heckle and slow-clap, during which security appeared.
However their attempts to eject those responsible for the disruption were initially met with aversion from the protesters, one of whom could be heard saying: “We stand under Common Law jurisdiction.
“If you touch us, you’ll be done for common assault. Please stand back, do not touch us.
Protestors attempted to disrupt the Sadiq Khan’s speech to the Fabian Society
Protestors attempted to disrupt Sadiq Khan’s
US President Donald Trump came under fire from Saddiq Khan
“We’re not leaving, we’ve paid for a ticket.”
The protestor then accused the Fabian Society of “subverting” the constitution.
The chaos lasted around 20 minutes – during which Mr Khan read the newspaper and a rival protest of anti-Brexit supporters was cheered by the crowd – as the police were called in to deal with the disruption.
Mr Trump confirmed on Friday he had cancelled his proposed trip to London.
He said he did not want to cut the ribbon on the new US Embassy as he deemed the building’s relocation a “bad deal”.