Watch footage of the attack on Ulster-owned cereal cafe in London

Jasiminne Yip, 29, who runs a vintage clothing shop close to the café, saw the mob arrive and attack the Cereal Killer cafe and said a few of them had “very upper-class accents”.

Footage captured by Matt Moncrieff, a Cereal Killer Cafe manager, shows protesters flinging smoke bombs and pounding on the glass outside the restaurant at around 8 p.m. on Saturday.

The window of a neighbouring estate agent was smashed and a police officer was injured by a thrown bottle.

“I did think it was a bit ironic that they were attacking a small independent business and claiming to be against gentrification”.

“While I understand people’s annoyance at property damage please put it into the context of the violence of poverty, hunger and homelessness many thousands of Londoners are being subject to”, Harvey writes. “I think they have kept this story going”. “Working class people are being forced out of our homes but we won’t go out without a fight”. For me, the class struggle will always be about working toward a society that is more equal, where your life chances are no different if your parents are bankers, stock brokers, factory workers, or cereal cafe owners. “Any individual identified as being involved in the violence will be actively sought, arrested and brought to justice”.

This week a group of anti-gentrification protesters vandalised Cereal Killer cafe in Shoreditch.

Mr Keery, who owns the business with his twin brother Gary, said: “They see us as one of the biggest symbols of gentrification in the area”.

Dr Mckenzie, a member of the British class survey team at LSE, said businesses such as the cafe were “ruining the mosaic of life” in east London and perpetuating a form of “social cleansing”.

Police are appealing for witnesses to come forward after an anti-capitalism protest in east London turned violent. A man arrested on suspicion of criminal damage has since been released without charge.