A swastika and the words “Hail Boris” have been scrawled onto a Conservative Party placard in Golders Green.
According to communal security organisation Shomrim, it was the second reported incident of antisemitic graffiti in the area this week.
The placard for local Tory candidate Mike Freer was positioned in front of a Jewish home, according to the Campaign Against Antisemitism.
A spokesperson for Shomrim North West London said: “It is incidents like these which bring the issue of antisemitism into sharp focus.
“This is the second incident reported to Shomrim in the last week of antisemitic graffiti daubed in Golders Green. Shomrim are committed to supporting victims of all hate crime.
“We urge any victims of antisemitism to come forward and we will support you in reporting these incidents to police, and provide you with the necessary support.”