Nigel Farage has been hit with a milkshake while out campaigning ahead of the European elections.
The Brexit Party leader had just spoken in Newcastle while campaigning across England when a milkshake was thrown at the politician.
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A video of the incident shows Farage covered in what is believed to have been a banana and salted caramel milkshake.
The alleged perpetrator is reported to be 32-year-old Paul Crowther, who was quickly cuffed by a police community support officer and taken into custody.
"A 32-year-old man has been arrested on suspicion of common assault and remains in police custody," a Northumbria police spokesperson said.
BBC reports Crowther as saying he hadn't known Farage was in town, but when he saw him, he felt it was an opportunity to protest the politician's views.
"The bile and the racism he spouts out in this country is far more damaging than a bit of milkshake to his front," the man said.
Farage was furious with the incident, heard asking his security staff how they couldn't see the milkshake coming his way.
He later tweeted that "normal campaigning is becoming impossible".
"Sadly some remainers have become radicalised, to the extent that normal campaigning is becoming impossible," Farage wrote.
"For a civilised democracy to work you need the losers' consent, politicians not accepting the referendum result have led us to this."
A spokesperson for the United Kingdom's Prime Minister Theresa May said the incident should be taken seriously by police.
"The Prime Minister supports efforts to stamp out unacceptable and unlawful behaviour, and where incidents of harassment and abuse constitute a criminal offence this should be taken seriously by the police."
It's the latest in a line of similar attacks on right-wing politicians, such as Tommy Robinson and Carl Benjamin, who both have had milkshakes and other food thrown at them by protestors.
Scottish police asked a McDonalds restaurants near a Brexit Party rally to stop selling milkshakes temporarily last week in an attempt to avoid an attack on Farage.
The European elections take place on Thursday (local time).