Nigel Farage has had a milkshake thrown over him during a walkabout in Newcastle.
The Brexit Party leader was pelted with the drink while campaigning ahead of this week’s European elections.
Mr Farage was pictured with milkshake dripping down the right hand side of his suit.
He was led away by security as a person was dragged away by a Police Community Support Officer.
A 32-year-old man has been arrested on suspicion of common assault. Mr Farage later confirmed he plans to press charges.
On Twitter, a user called @themadbrewery tweeted an image of a full milkshake just minutes before the incident.
Sadly some remainers have become radicalised, to the extent that normal campaigning is becoming impossible.
For a civilised democracy to work you need the losers consent, politicians not accepting the referendum result have led us to this.
— Nigel Farage (@Nigel_Farage) May 20, 2019
He tweeted: "I'd got my milkshake and coincidentally there's a Brexit Party march”.
A few minutes later the account tweeted again: "I ******* did it, it was Farage, I can't believe it."
Paul Crowther, 32, from Throckley, Newcastle, said it was a £5.25 Five Guys banana and salted caramel milkshake.
He said: "I didn't know he was in town, I thought this is my only chance."
Mr Crowther said he saw there was a Brexit Party event in the city centre, thought it was an MEP and then saw Mr Farage.
He explained: "It's a right of protest against people like him.
"The bile and the racism he spouts out in this country is far more damaging than a bit of milkshake to his front."
I’d got my milkshake and coincidentally there’s a Brexit Party march.... pic.twitter.com/pA2dQgwGGE
— The Mad Brewer (@themadbrewery) May 20, 2019
Shortly after the incident, Mr Farage could be heard saying "how did you not stop that?" as his staff ushered him away from the scene.
Mr Farage also took to Twitter after the incident.
He wrote: “Sadly some remainers have become radicalised, to the extent that normal campaigning is becoming impossible.
“For a civilised democracy to work you need the losers consent, politicians not accepting the referendum result have led us to this.”
A 32-year-old man has been arrested on suspicion of common assault, Northumbria Police said.
Standing in handcuffs outside the Waterstones book shop, Mr Crowther said he did not regret his actions.
Of his £5.25 milkshake, he ruefully said: "I was quite looking forward to it, but I think it went on a better purpose."
Earlier, Mr Farage had been interviewed by the BBC then walked down Northumberland Street, the main shopping street in Newcastle.
He was hit by the milkshake in the shadow of Earl Grey's monument and was then walked away by security and into a taxi.
Earlier, during a campaign visit to Exeter, Mr Farage described Labour former prime minister Gordon Brown's call for him to reveal the sources of funding for the Brexit Party as "jealousy”.
Mr Farage said: “How dare he? Most of our money has been raised by people giving £25 to become registered supporters and nearly 110,000 of them now have done that.
"Frankly, this smacks of jealously because the other parties simply can't do this.
"How open can we be? What you have got here are the conspiracy theorists doing their utmost to try and delegitimise what is the fastest growing political movement this country has ever seen."