“The people who put it up were called London Palestine Action. As a Palestinian they don’t speak for me, and they are blatantly racist signs. You don’t say a whole country is racist."
She also mocked the claim that Mr McDonnell, 67, was "on a journey" regarding Israel and antisemitism.
“I was like ‘really?’ You’re 60 something years old, come on. If you haven’t realised by now that this is antisemitism no wonder there’s a problem in the Labour Party," she told the Standard.
Ms Moran, whose mother was born in Jerusalem, also told the paper she rarely intervened in the Israel/Palestine debate because it was "so emotive".
She added: "I’ve been attacked by people who say you’re not a real Palestinian and your mum’s not a real Palestinian for raising you that way.
"But when I see someone who is ‘on a journey about being antisemitic’, I’m sorry but I’m intervening.
"Calling out antisemitism doesn’t make me any less Palestinian. There’s a nuance in the argument that has been lost and Corbyn not saying antisemitism is wrong has fuelled the problem. Some responsibility does lie at his door."
