Germany’s largest umbrella organization for Jews is criticizing Amazon for allowing third-party vendors to sell pro-Nazi products on its site.

Josef Schuster, head of the Berlin-based Central Council of Jews in Germany, called it “absolutely unacceptable” for T-shirts, stickers and books glorifying the Nazis or inciting hatred against minorities to be sold on Amazon.

The online retail giant has a “great moral and social responsibility,” and shouldn’t try to hide behind the notion that it is merely a “supplier,” Schuster said in an interview with the German media group RedaktionsNetzwerk Deutschland (RND), according to a translation from The Local.

“What we expect from a company such as Amazon, and from competent authorities, is that they immediately withdraw these articles from circulation and systematically launch legal proceedings,” Schuster said.