So who are the people behind these incidents and should we be worried about a potential rise in neo-Nazism?
Listen to SBS Indonesian every Monday, Wednesday, Friday, and Sunday at 3 pm.

A group of about 40 men wearing black balaclavas and brandishing Australian flags at Artarmon train station in Sydney, Friday, January 26 (AAP). Credit: AAP Image/Supplied by Transport for NSW
So who are the people behind these incidents and should we be worried about a potential rise in neo-Nazism?
Listen to SBS Indonesian every Monday, Wednesday, Friday, and Sunday at 3 pm.