Twitter has handed over data to French authorities to help identify the authors of anti-Semitic tweets, following a complaint from a Jewish students' group.
In January French court ordered the company to provide the data after legal action by France's Union of Jewish Students.
Twitter said the move "puts an end to the dispute" with the union and that the two parties would work together to fight racism and anti-Semitism.
The union had been pressing Twitter to exercise tighter control following a deluge of anti-Semitic messages last year posted under the hashtag "unbonjuif" - meaning a good Jew.
The tweets included references to the Holocaust, and proclaimed hate slogans, mostly through the French language.
#Unbonjuif : Twitter accepte de livrer des données à la justice http://t.co/w757bn07Zi
— Ouvertures (@Ouvertures) July 12, 2013
You can watch a French news report on the incident below: