A Jewish Labour member was left shocked after someone left a picture of Donald Trump outside her house after she discussed antisemitism at the local constituency party.
Dr Rebecca Moses, who lives in Wimbledon, said she reported the act to the police, as she believed it was a hate crime.
Dr Moses tweeted that whoever placed it there meant to say she was "automatically a Trump fan" because she was Jewish.
The poster appears to refer to Pete Willsman, the member of Labour's governing body who ranted during one of its meetings about how British Jews were "Trump fanatics" who were making up allegations of antisemitism within Labour.
The JC exposed a recording of his rant in July.
Dr Moses received an outpouring of support after her tweet, including from former Labour leadership candidate Yvette Cooper, who called it "appalling" and sent her "love and solidarity".
Former Labour councillor Adam Langleben said he was appalled someone had looked up where Dr Moses lived to leave the poster.
He called it "racially motivated bullying of a Jewish Labour member and her family", adding she was brave to speak out.
Simon Myerson, a QC, said the intimidation showed how Labour's antisemitism crisis was escalating.
Dr Moses tweeted that she was "touched by the support I’ve received" since sharing the image.
