A 30-foot swastika was daubed on the east London business headquarters of Jewish businessman Lance Forman - whose father is a Holocaust survivor - in what he suspects is a antisemitic attack.

Mr Forman – who recently announced he was standing for Nigel Farage’s Brexit Party in the European elections - was alerted to the incident by office staff after arriving back in the UK in the early hours of Wednesday morning.

Police are now examining CCTV of the area around the H. Forman & Son factory in Hackney Wick, which is believed to have captured images of those responsible.

Mr Forman told the JC: "My dad fled the Nazis in Poland and is a Holocaust survivor who spent the war years as a child in a Siberian prison camp. 

“He has worked with HET (the Holocaust Educational Trust) to teach children about the horrors of antisemitism. So the fact that we have been targeted in this antisemitic way is quite horrific and sick.

“The police have images of the culprits on CCTV and I sincerely hope they are tracked down. “

Last month, Mr Forman announced his decision to stand in the May 23 European elections, calling his party leader Mr Farage “formidable”.

He described the ex-Ukip leader as having “devoting 25 years of his life… he has done more than anyone in Britain to awaken the spirit of freedom and democracy.”

H. Forman & Son is Britain’s oldest salmon curer. The business was founded by Mr Forman’s great-grandfather who fled the pogroms of Russia in the late 19th century to settle in London’s East End. 

Its headquarters on Fish Island was opened by then-Mayor of London Boris Johnson in 2009 after it was forced to relocate ahead of the London 2012 Olympics.

The Metropolitan Police confirmed officers from Tower Hamlets were investigating and no arrests had been made.

A spokesperson said: "Police are investigating an incident of criminal damage to a building in Tower Hamlets.

“A swastika emblem was sprayed on a building at Stour Road, London, E3 at around 2330hrs on Tuesday, 7 May."