Jakarta, March 18 -- The Indonesian Defence Forces (TNI) have arrested four personnel for their suspected involvement in an acid attack against human rights activist Andrie Yunus, Deputy Coordinator of the Commission for Missing Persons and Victims of Violence (KontraS).

"The four suspects have been arrested by the military police for investigation purposes," TNI's Military Police Commander Major General Yusri Nuryanto stated here on Wednesday.

Nuryanto confirmed that the four suspects were members of the military's Strategic Intelligence Agency headquarters detachment (Denma BAIS), identified by the initials NDP, SL, BWH, and ES.

The military police chief said that investigators have yet to establish the motive for the attack as the p...