The largest bookstore chain in Poland, Empik, has halted sales of a book written by a former priest accused of antisemitism after customers threatened it with a boycott.

The book, My Fight for the Truth (Moja walka o prawdę) was written by Jacek Międlar, a former priest associated with Polish nationalists. He has been indicted in the western Poland city of Wrocław for “public incitement to hatred based on religious and national differences” for a 2016 speech in which he called for hatred against Jews and Ukrainians.

“It is outrageous that someone publishes a book with a title alluding to Hitler’s Mein Kampf and the largest bookstore chain in the country does not realise they are promoting radicalism,” Monika Krawczyk, CEO of the Foundation for the Preservation of Jewish Heritage in Poland, told the JTA.

In response, Empik’s media spokesperson, Monika Marianowicz, told JTA: “We are proponents of freedom of speech, but within the limits of the law. Following many messages and emails sent to the bookstore and comments on social media, the book has been temporarily withdrawn from sale…until the situation is clarified.”