According to the Jakarta Post, police also questioned four Malaysians involved in the sale of the said books.

Tanah Abang crime investigation unit Cmr Mustakim said police seized six copies of the book.

“The publishers and the sellers at the fair are Malaysian citizens,” he was quoted as saying.

Zulfikri Zamir bin Mohammad Munir, 31, of Thukul Cetak publisher; Sakri bin Abdullah, 51, head of the stand at the book fair; and stand attendants M Rozla Bin Muhammed Noor, 46; and Khairul Nizam bin Muhammad Yunis, 45; were brought to Jakarta police headquarters for questioning, but were not slapped with any charges.

In May, police detained two people for selling T-shirts of German trash metal band Kreator, which were embroidered with the image of a hammer and sickle.

Jakarta Post also reported a number of events, shows and discussions on the 1965 purge have been shut down since 2015.