France's interior minister Monday slammed "intolerable" acts of anti-Semitism after a rally against Israel's Gaza offensive descended into violence pitting an angry pro-Palestinian crowd against local Jewish businesses.
Sunday's demonstration in the north Paris suburb of Sarcelles was the third to deteriorate in a week, as shops were looted and riot police lobbed tear gas and rubber bullets at the crowd.
The rally had been banned amid concern the Jewish community would be targeted after protesters last weekend tried to storm two synagogues in Paris.
"When you head for the synagogue, when you burn a corner shop because it is Jewish-owned, you are committing an anti-Semitic act," Bernard Cazeneuve told reporters outside the Sarcelles synagogue.
In the Paris suburb sometimes nicknamed "little Jerusalem" for its large community of Sephardic Jews, the rally descended into chaos when dozens of youth -- some masked -- set fire to bins and lit firecrackers and smoke bombs.
Eighteen people were arrested after looters wrecked shops, including a kosher foodstore and a funeral home as protesters shouted: "Fuck Israel!".