A judge has declared notorious anti-Zionist activist Tony Greenstein bankrupt after a legal petition was lodged against him by an anti-racism organisation.

Campaign Against Antisemitism launched the petition after seeing off a libel action by Greenstein which left him owing them over £80,000 in costs.

Greenstein had tried to sue CAA for calling him a “a notorious antisemite”.

The Brighton-based activist, a co-founder of the Palestine Solidarity Movement, did not appear at the bankruptcy proceedings.

A CAA spokesman said: “Our defamation win against Tony Greenstein secured our ability to call out anti-Jewish racism in order to combat it. The bankruptcy order will greatly reduce his capacity to litigate against others without any ability or intention to pay when he loses”.

Notice of the bankruptcy petition was served on Greenstein as his appeal hearing concluded last month.

He boasted on a crowdfunding page that he did not even trouble to open it, adding that he was not bothered by the prospect of bankruptcy: “It will cost the CAA a few thousand pounds to present a petition from which they cannot hope to get anything back, since you cannot get blood from a stone.

“This will probably result in me being made bankrupt for a year, which is no big problem. I will not go without a square meal a day. My needs are few”.