A French police officer was injured on Saturday when a blazing car exploded in the car park of a synagogue in the town of La Grande-Motte, a union representative said, and the government said security at Jewish institutions would be stepped up.

The police said they were treating the incident as attempted arson and several politicians as well as Jewish organisations denounced it as an antisemitic attack. BFM TV said the anti-terrorism prosecutor’s office would be in charge of the case.

France, like other countries in Europe, has seen a surge in antisemitic incidents following the Hamas attacks on Israel on October 7 and Israel’s retaliatory assault on Gaza. Local media said two cars, one of which contained at least one gas bottle, had been set on fire in the synagogue’s parking area, at about 8:30 am.

“Exploding a gas bottle in a car in front of the Grande Motte synagogue at the expected time of arrival of the faithful: it’s not just attacking a place of worship, it’s an attempt to kill Jews,” Yonathan Arfi, who leads the CRIF, an umbrella organisation of French Jewish groups, said.

William Maury, of police union Alliance Police Nationale, told BFM TV the injured officer’s life was not in danger. The police confirmed the attempted arson. Interior minister Gerald Darmanin said the police were looking for a suspect. “I want to assure our fellow Jewish citizens and the city (of La Grande-Motte) of all my support and say that at the request of the President of the Republic @EmmanuelMacron, all means are being mobilised to find the author (of the attack),” Darmanin said.