A 32-year-old man has been arrested on suspicion of assault after British politician Nigel Farage was doused in a milkshake while on a walkabout.
Mr Farage had walked down Northumberland Street with security staff followed by Brexit Party supporters and the media.
A bystander says he threw the milkshake at Mr Farage in protest.
Paul Crowther, from Throckley, Newcastle, 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."
The Brexit Party leader was heard to comment "complete failure" and "I could have spotted that a mile off" as he was ushered away by security following the incident in Newcastle city centre.
One of his team was heard to say "sorry" as Mr Farage was walked to his taxi and then driven away from the event.
Northumbria Police said a 32-year-old had been arrested on suspicion of common assault.
Afterwards, Mr Farage tweeted: "Sadly some remainers have become radicalised, to the extent that normal campaigning is becoming impossible.
"For a civilised democracy to work you need the loser's consent, politicians not accepting the referendum result have led us to this."
Mr Farage became the latest victim of a protest which has seen other European election candidates such as Ukip's Carl Benjamin and ex-English Defence League leader Tommy Robinson suffer similar attacks.
