At least 20 people were missing after violent protests sparked in Indonesia by lavish perks for lawmakers that have come to include anger against police, a rights group said Tuesday.

At least six people have been killed since protests rocked Southeast Asia¡¯s biggest economy last week, intensified by footage spreading of the killing of a young delivery driver by a paramilitary police unit.

¡°As of Sept. 1, there were 23 reports of missing persons. After the search and verification process, 20 missing persons remain unfound,¡± the Commission for the Disappeared and Victims of Violence (KontraS) said in a statement.