SJP supports the Boycott, Sanctions and Divestment campaign targeting the Jewish state.
The Jerusalem-based NGO Monitor retained a screenshot of the Tweet.
The Green student group said that its federal association was the first signatory of the motion passed in June against BDS.
The Belfast city council, which should be focused on local municipal issues, may embarrass Northern Ireland with its foray into Mideast conflicts
The former mayor of the German university city of Jena, Albrecht Schröter, has long been a supporter of the Boycott, Sanctions and Divestment (BDS) campaign targeting the Jewish state.