A Jewish cemetery in Eastern France was defaced with swastikas and other anti-Semitic graffiti, another incident in a growing pattern of recent extremist action in the country.

Thirty-seven tombstones and a monument to Holocaust victims were desecrated this week in the Herrlisheim Jewish cemetery near Strasbourg, according to The New York Times.

On one of the tombstones, someone scrawled the “14 words” slogan, a phrase used by white supremacists and neo-Nazis all over the world.

On Friday, French officials went to pay their respects.

“When a place of recollection is desecrated, it’s the entire Republic that is sullied,” Christophe Castaner, France’s interior minister, tweeted after visiting the cemetery. “Everything is being done to identify and detain the authors of this desecration.”

Police didn’t say whether they had any suspects in the vandalism, which likely occurred on Monday night or Tuesday morning.

It was another week of extremist violence and political action in France, which has seen anti-Semitic acts, a terrorist attack and ongoing cultural upheaval in Paris.