Tommy Robinson supporters called for Labour leader Sir Keir Starmer to be killed during a mass anti-migrant march in London on Saturday.

During an interview with former Tory councillor and known conspiracy theorist William Coleshill, a protester was caught on camera saying: ‘Keir Starmer needs to be assassinated, someone needs to shoot Keir Starmer.’

Coleshill disagreed, responding that Starmer should instead be put on trial and ‘lawfully executed.’

Footage of the exchange, filmed among the 110,000 people who joined the march, has sparked widespread outrage online. 

Social media users quickly called for the protester’s arrest, with one commenting: ‘A jail sentence is pending for this fool!’ Another remarked: ‘Hope the Met apprehends this individual.’

The video emerged as police mentioned they had made nine arrests after supporters of Robinson threw objects at officers during what is believed to be the largest right-wing demonstration in British history.

This incident occurred just days after American right-wing activist and Trump supporter Charlie Kirk was killed while speaking at a university event in Utah.

The ‘Unite The Kingdom’ march involved 110,000 anti-migrant protesters marching through central London today, with police stating they encountered ‘unacceptable violence’ while managing the crowds.

Tommy Robinson supporters have called for Keir Starmer to be assassinated during a huge anti-migrant march in London on Saturday

Tommy Robinson’s supporters turned their anger on British Prime Minister Sir Keir Starmer

Tommy Robinson, real name Stephen Yaxley-Lennon, was the organiser of the Unite the Kingdom march in central London

Charlie Kirk, 31, was killed by a single bullet at Utah Valley University on Wednesday

The event was organized by anti-immigration and anti-Muslim activist Robinson, whose real name is Stephen Yaxley-Lennon, starting at Stamford Street near Waterloo Bridge and proceeding to the southern end of Whitehall.

Tesla CEO Elon Musk criticised the Government for a ‘rapidly increasing erosion of Britain’ via a video call to the event in central London.

A counter-protest organised by group Stand Up To Racism (SUTR) formed at the other end of Whitehall with 5,000 in attendance, according to official Met Police figures.

The Met Police said it had faced ‘significant aggression’ from violent Unite The Kingdom protesters who they say assaulted officers and peppered them with missiles.

Speeches and music continued on the stage in Whitehall past the 6pm cut off time imposed by police.

Dozens of tributes have been spotted to Kirk following his death this week while speaking in Utah

A man holds a photograph of Charlie Kirk, a conservative influencer who was shot dead in the US this week, during the Unite The Kingdom march

The interviewer, conspiracy theorist and former Conservative councillor William Coleshill (right), disagreed. He said Starmer should be tried before being ‘lawfully executed’, despite Britain not having the death penalty

Away from that crowd, a line of officers stood beneath a tunnel outside Embankment station, while men wearing St George’s flags shouted ‘w*****s’ and spat down at them from one of the Golden Jubilee footbridges at around 6pm.

One man heckled through a megaphone and others could be heard shouting the same profanity at the police line below.

Through out the day swathes of pro-Robinson demonstrators turned out bedecked in Union Jacks and England flags, with many bearing pictures of Charlie Kirk, the American conservative activist who was shot dead in Utah on Wednesday.

After crowds reached Whitehall, Laurence Fox told those gathered he was praying for Charlie Kirk and said a ‘sword’ should be taken to people shutting down free speech.

As violence broke out among Unite The Kingdom protesters, police officers faced ‘significant aggression’ and were seen struggling to keep activists from breaching their lines and gaining access to counter-protesters, who were all but surrounded.

Initially small scuffles between protesters and police broke out, with activists pushing and shoving, and officers seen drawing batons in response, before projectiles were thrown and officers assaulted.

The force struggled to contain the violence and by 4.30pm, had to send in urgent reinforcements to deal with Unite The Kingdom protesters, including mounted officers on horses.

The Met said its officers were ‘attacked with projectiles and have had to use force to prevent their cordon being breached’ after a group from Unite The Kingdom attempted to force their way through police lines towards counter protesters.

The men made the comments as they stood among the 110,000 activists who had taken to the streets to protest immigration. Pictured: Overhead footage shared by the Met Police showed groups of protesters attempting to force their way through police barriers

A man with a bloody eye is pushed back by police officers during the Unite The Kingdom march

A Met Police infographic showing the locations of the protesters and counter-protesters and the sites of disorder

The force later added that ‘a number of officers have been assaulted’ and it was having to ‘intervene in multiple locations’ to stop Unite The Kingdom protesters from reaching ‘sterile areas’ and counter-activists.

Just before 5pm, the Met said it had made nine arrests. A spokesperson said: ‘The turnout for the ‘Unite the Kingdom’ protest was too big to fit into Whitehall.

‘Protesters left the route onto Victoria Embankment and sought to access Whitehall from multiple directions.

‘When officers moved in to stop them they faced unacceptable violence. They were assaulted with kicks and punches. Bottles, flares and other projectiles were thrown.

‘Nine arrests have been made so far for various offences, but many more people have been identified as committing offences. We will find them and they will face police action, even if it is not possible to do so today.

‘Officers are continuing to face aggression in multiple locations, in particular at the north of Whitehall as they work to create a safe exit route for those who have been taking part in the Stand Up To Racism protest.’

A Met spokesperson said: ‘We’re aware of a video circulating on social media from the ‘Unite the Kingdom’ protest on Saturday, 13 September in central London.

‘Officers are investigating and enquiries are ongoing to identify a man.

‘No arrests have been made so far.

‘Anyone with information is asked to call 101 or Crimestoppers on 0800 555 111.’