A Paris kosher restaurant was vandalised on Thursday night in the northern 19th arrondissement. Its walls and tables were covered with swastikas, Nazi slogans including 'Hitler was right' and others mentionning the Israeli-Palestinian conflict, including "Free Palestine".

Jewish community leaders urged authorities to step up security measures.

"If this can happen in a restaurant then synagogues could also be potential targets," Francis Kalifat , the head of Jewish umbrella group CRIF told the JC, noting that the hate slogans were of mixed nature, both far right and anti-Zionist.

Jewish Students leader Noemie Madar told the JC the attack comes at a time when a Paris court is trying the alleged accomplices of the terrorists who struck Hyper Cacher and Charlie Hebdo weekly in January 2015.

"The insecurity French Jews are facing is at its highest. We urge authorities to take strong and clear action at a time of absolute emergency regarding antisemitism."

The news came as French Jews marked 40 years on Friday since the bombing targeting the Paris Copernic synagogue, the first antisemitic attack since World War Two.