Shomrim has alerted police to swastika posters found distributed across a children’s playground in Stamford Hill.
The Jewish neighbourhood watch group have urged witnesses to call the police with information.
Board of Deputies vice president, Marie van der Zyl said: “The daubing of Nazi symbols in a place where Jewish children study and play is an act of racism intended to spread fear and alarm.
In a week when the Board of Deputies has given evidence at the Home Affairs Select Committee’s inquiry into the rise of antisemitism, this is an example of one of the many threats the Jewish community faces. We hope the perpetrators will be apprehended and made to feel the full force of the law.”
Meanwhile in Surbiton, South London, police were called after a Star of David was daubed on a barber’s shop front.
Laurence Lando, who is a member of New West End Synagogue in Bayswater, noticed the graffiti when he was walking past Surbiton Talent Barbers.
He said: “I went in to speak to the barber who turned out not to be Jewish and he had no idea why someone would do that to him.
“He was actually Afghani himself so it didn’t even make sense to graffiti his shop in that way. But either way it is offensive be you Jewish or not. We called the police and alerted CST and the graffiti was removed immediately.
“It is very unusual, we are a small Jewish community in south London. It is the sort of thing we are used to in north-west London.”