UKIP's leader Nigel Farage has labelled protestors as "scum" after he was hounded out of a pub and had his car attacked.
The incident took place at the Queen's Head pub in Kent where Farage was having lunch with his wife, Kirsten and two daughters, Victoria and Isabelle, who are aged 15 and 10 respectively.
The party leader was left fuming at the incident and said that his children ran away in distress. Farage's car bonnet was also jumped on as he pulled away.
At first dozens of demonstrators went to the George and Dragon where Farage had previously been pictured having a drink, before realising that he was at a different pub close by.
Staff at the Queen's Head have refused to comment.
"I hope these 'demonstrators' are proud of themselves. My children were so scared by their behaviour that they ran away to hide," said Farage. "At the time of writing this a relative has gone to look for them, and they are not yet at home. These people are scum."
His children have since been located and have returned home.
The protestors were in a variety of fancy dress including migrants, HIV activists, gay people, disabled people and breastfeeding mothers.
Protest organiser Dan Glass said: "UKIP are a con. They pretend to be anti-establishment but this couldn't be further from the truth. By wrongfully shifting the blame for the economic crisis onto immigrants they have let the bankers off the hook.
"That is why so many diverse communities have taken our cultures to the heart of where they exist – Nigel Farage's local pub. We will not succumb to their prejudice. We will create the world we want to live in. A world beyond UKIP."
It is understood that UKIP has appealed for taxpayer-funded security for the party's chief during the election campaign amid concern that he could frequently be targeted by protestors.