THIS is the dramatic moment masked protesters stormed a free speech event at King's College London.

Punches are thrown and smoke bombs let off as the group burst into a lecture theatre waving the flag belonging to an often militant protest group.

6 The masked group burst into the lecture hall and disrupted the debate Credit: YouTube

Hundreds of students were at the KCL Libertarian Society talk to hear Carl Benjamin, called Sargon of Akkad online, and Ayn Rand Institute director Dr Yaron Brook speak.

Mr Benjamin is known for controversial YouTube videos where he criticises people he calls regressive lefts and radical feminists.

Footage filmed last night shows the moment the masked group burst in as scuffles break out while the groups clash.

A number of security guards were assaulted and required hospital treatment, according to the organisers.

6 They surrounded one of the controversial speakers Credit: YouTube

King's Libertarian Society respond to violent ANTIFA protests on campus

6 A scuffle broke out between audience members and the group Credit: Alex Buhaenko

6 The first protester burst in to the lecture hall and pointed at the speakers Credit: YouTube

The building was evacuated and the police called after fights broke out between the protesters and audience members.

A number of notes were left by protesters with one reading: "The guy moderating the talk is on my course and he'll have a difficult time once the strike is over."

The talk had been originally scheduled for March 4, but was apparently rescheduled due to security fears.

An eye-witness, who did not wish to be named, told the Daily Mail: "Ten to 15 people dressed all in black, with black hoods and black face masks, leapt over the barriers and instantly engaged in a fight with two or three security guards,

"They tried to stop them but they just started punching them in the face. One guard received several punches."

6 A note left by one of the masked group addressing one of the moderators Credit: Facebook

6 Controversial speaker Carl Benjamin watches on after the group stormed the event Credit: Alex Buhaenko

The group were waving an Antifa flag and the North London Antifa group later tweeted: "Tonight a group of student and anti-fascist activists successfully shut down an 'alt-right' talk at Kings College.

"Here's alt-right mouthpiece 'Sargon of Akkad' after he was forced to leave the building, no platform for him tonight."

The group was founded in the US and is known for carrying out protests, often in a militant fashion.

A spokesman for the KCL Libertarian Society said in a statement: "Windows have been smashed and gas bombs lit outside campus.

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"A number of KCL security guards are on their way to hospital after being assaulted, and to them and their families we offer our prayers and wishes for a speedy recovery.

"The event has now been cancelled & evacuated after threats to the moderator.

"This was an act of violence, clearly intended to silence Yaron and Sargon's planned debate, via a series of jackbooted totalitarian tactics that unfortunately proved successful tonight."

The Met Police said they were not aware of injuries but confirmed they had been called to reports of a disruption.

A spokesman added the group had dispersed by the tome officers arrived and enquiries continue.

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