Countries › Indonesia › September 2025
Indonesia: conflict events in September 2025
Monthly report from UCDP event data.
In September 2025, UCDP recorded 9 organized-violence events in Indonesia, with 14 estimated deaths. That is +13% compared with 8 events the month before. The death toll range is 13 to 18.
78% of the month's events were one-sided violence against civilians. Civilian deaths: 4.
Events were concentrated in Papua Pegunungan province (6), Papua Selatan province (2), Papua Tengah province (1).
The most active pairing was OPM - Civilians with 5 events.
Where events happened
Regions, September 2025
| Region | Events | Est. deaths |
|---|---|---|
| Papua Pegunungan province | 6 | 11 |
| Papua Selatan province | 2 | 2 |
| Papua Tengah province | 1 | 1 |
Deadliest events, September 2025
| Date | Where | Parties | Est. deaths |
|---|---|---|---|
| 22 Sep 2025 | Yahukimo regency Papua Pegunungan province | OPM vs Civilians One-sided | 3 |
| 21 Sep 2025 | Yahukimo regency Papua Pegunungan province | OPM vs Civilians One-sided | 2 |
| 21 Sep 2025 | Yahukimo regency Papua Pegunungan province | Government of Indonesia vs OPM State-based | 2 |
| 20 Sep 2025 | Yahukimo regency Papua Pegunungan province | OPM vs Civilians One-sided | 2 |
| 27 Sep 2025 | Asmat regency Papua Selatan province | Government of Indonesia vs Civilians One-sided, 1 civilian, 2 sources | 1 |
| 25 Sep 2025 | Pegunungan Bintang Papua Pegunungan province | Government of Indonesia vs OPM State-based | 1 1–5 |
| 21 Sep 2025 | Asmat regency Papua Selatan province | OPM vs Civilians One-sided, 1 civilian | 1 |
| 17 Sep 2025 | Puncak Jaya regency Papua Tengah province | OPM vs Civilians One-sided, 1 civilian | 1 |
| 16 Sep 2025 | Yalimo regency Papua Pegunungan province | Government of Indonesia vs Civilians One-sided, 1 civilian, 2 sources | 1 0–1 |
Parties
| Party | Events |
|---|---|
| OPM | 7 |
| Government of Indonesia | 4 |
Type of violence
| Category | Events |
|---|---|
| State-based | 2 |
| Non-state | 0 |
| One-sided | 7 |
All months
Monthly reports:Jul 2026Jun 2026May 2026Apr 2026Mar 2026Feb 2026Dec 2025Nov 2025Oct 2025Sep 2025Aug 2025Jul 2025Jun 2025May 2025Apr 2025Mar 2025Feb 2025Jan 2025Dec 2024Nov 2024Oct 2024Sep 2024Aug 2024Jul 2024
Source: UCDP GED and Candidate Events, CC BY 4.0. Counts use the "best" fatality estimate. See methodology.