Pro-Trump supporters disrupted a conference being held in London where Mayor, Sadiq Khan was set to make a speech.
The Fabian society, a socialist organisation, had their conference interrupted after a group of Trump supporters shouted their support for the US President.
The protest was apparently against comments made by the Mayor of London about Mr Trump's plans to cancel his trip to the UK.
On Friday, Mr Khan said: "It appears that President Trump got the message from the many Londoners who love and admire America and Americans but find his policies and actions the polar opposite of our city’s values of inclusion, diversity and tolerance.
“His visit next month would without doubt have been met by mass peaceful protests.
“This just reinforces what a mistake it was for Theresa May to rush and extend an invitation of a state visit in the first place.
“Let’s hope that Donald Trump also revisits the pursuit of his divisive agenda.”
The group entered the conference moments before Mr Khan was due to make his keynote speech.
The Mayor appeared to read a newspaper as the group were led out of the hall to cheers from attendees of the Fabian Society.
Mr Khan announced: "It is a pleasure to be [joined] by what some would call very stable geniuses."