Paris

The scale of the destruction has also prompted wider questions about how social grievances developed into a national security crisis, whether extremist networks are exploiting the unrest.

Some 2,400 people were arrested during the weekend, and police investigators are poring over online videos and images to track down looters.

Amid reports of incidents targeting Jewish sites in France, the SPCJ urged the Jewish community to exercise caution, avoid spreading unverified claims of antisemitism, and rely on official updates.

Trump urged France to close its borders, blaming immigration for the unrest as violent riots swept major cities, leaving buildings torched and hundreds injured.

A Jew in France or New York should be able to hold any opinion about Israel, or none, without being tested on it before walking into a synagogue.

The protests in France began last ‌month at high schools in Paris' working-class northern suburbs, where anger over teacher shortages and shabby facilities evolved into a broader movement.

The student-led movement broadened from protesting the eduction system to a nationwide demonstration against inequality and excessive public spending.

In Lyon, the local authorities asked organizers to call off a march after a group of "hostile individuals" preceding the main procession vandalized shops and a petrol station and clashed with police.

Les Mousquetaires, owner of retailer Intermarché, said fridges at around 150 of its stores were heated to 50 degrees Celsius overnight for six hours.

Britain’s leaders face accusations that political calculation has taken priority over protecting citizens from extremism and antisemitism.