Nigeria › Borno state › May 2025
Borno state: conflict events in May 2025
Monthly report from UCDP event data for Borno state, Nigeria. Country-wide report: Nigeria, May 2025.
In May 2025, UCDP recorded 34 organized-violence events in Borno state, Nigeria, with 371 estimated deaths. That is +48% compared with 23 events the month before. The death toll range is 327 to 384.
85% of the month's events were state-based armed conflict. Civilian deaths: 95.
The most active pairing was Government of Nigeria - IS with 28 events.
Where events happened
Deadliest events, May 2025
| Date | Where | Parties | Est. deaths |
|---|---|---|---|
| 30 May 2025 | Gwoza lga Borno state | Government of Nigeria vs IS State-based, 7 sources | 60 60–64 |
| 15 May 2025 | Kukawa lga Borno state | JAS vs Civilians One-sided, 57 civilian, 13 sources | 57 |
| 27 May 2025 | Marte lga Borno state | Government of Nigeria vs IS State-based | 51 |
| 23 May 2025 | Damboa lga Borno state | Government of Nigeria vs IS State-based, 1 civilian, 11 sources | 33 |
| 26 May 2025 | Mobbar lga Borno state | JAS vs Civilians One-sided, 23 civilian | 23 0–23 |
| 22 May 2025 | Dikwa lga Borno state | Government of Nigeria vs IS State-based, 4 sources | 19 |
| 27 May 2025 | Marte lga Borno state | Government of Nigeria vs IS State-based, 5 sources | 17 |
| 31 May 2025 | Guzamala lga Borno state | Government of Nigeria vs IS State-based, 9 civilian, 4 sources | 9 9–10 |
| 27 May 2025 | Borno state | Government of Nigeria vs IS State-based, 5 sources | 8 8–10 |
| 13 May 2025 | Kala/Balge lga Borno state | Government of Nigeria vs IS State-based, 9 sources | 8 6–8 |
Parties
| Party | Events | Est. deaths |
|---|---|---|
| IS | 30 | 284 |
| Government of Nigeria | 29 | 289 |
| JAS | 4 | 87 |
All months
Monthly reports:Jul 2026Jun 2026May 2026Apr 2026Mar 2026Feb 2026Jan 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. See methodology.