The protests across Indonesia were triggered by discontent over economic inequality and lavish lawmakers’ perks but widened when footage circulated of a paramilitary police vehicle running over and killing 21-year-old driver Affan Kurniawan on Thursday.

National police spokesman Trunoyudo Wisnu Andiko said officer Cosmas K. Gae had acted “unprofessionally” during the protest.

He described Cosmas’s behaviour as “a reprehensible act”.

As a sanction, this required “dishonourable dismissal as a member of the national police”, Trunoyudo said in comments to reporters aired by broadcaster Kompas TV.

Indonesian media has reported that Cosmas was in the vehicle that hit Affan, but Trunoyudo gave no other details about the officer’s involvement.