Several tombstones were defaced with antisemitic graffiti at a Jewish cemetery near the French city of Strasbourg.

The incident was discovered Tuesday in Herrlisheim, a northern suburb, the CRIF umbrella of French Jewish communities said in a statement. “CRIF = ZOG” and the digits 88 were written on the tombstones. ZOG stands for “Zionist occupation government,” and the number is code for Adolf Hitler.

It’s the fourth time in two months that graffiti featuring far-right anti-Semitic rhetoric has been discovered at sites linked to Jews in the eastern Alsace region. In two incidents, Jewish mayors were the targets.

Also Tuesday, Strasbourg saw one of its main avenues renamed for Simone Veil, a Holocaust survivor and former minister who died last year.

Later in the day, three people were killed and 12 injured at a Christmas market there in a shooting attack by a Muslim radical, police said. The suspect, they said, may have fled into Germany.