(JTA) — A Jewish cemetery in the north of Norway was desecrated.

The incident was discovered on Oct. 25 at the Jewish cemetery of Trondheim, the Norwegian daily newspaper Aftenposten reported.

Several tombstones were vandalized with purple paint and the words “Der Furher,” a reference to Adolf Hitler, were painted on a nearby building.

Police are patrolling the area but have no suspects, Aftenposten reported.

Earlier this month, Ervin Kohn, president of the Jewish community of Oslo, expressed concern at the levels of anti-Semitism in Norway, which he said were higher than in neighboring countries.

The word “Jew,” he said, was one of the most common curse words in Norwegian schools.

A survey of secondary schools conducted by the City of Oslo revealed that one in three Jewish students was bullied at least once a month, Kohn said in an interview with Aftenposten.