ISS Global / Investigation Report
Guapi river drone attack
Lethal aerial explosive delivery against a Colombian Navy riverine unit
- Issued
- Location
- Guapi River, Guapi municipality, Cauca, Colombia
- Incident date
- 23 October 2026; exact time unresolved
- Language
- English
- Document
- 12 pages · PDF · 1.3 MB
An investigation of the reported drone-delivered explosive attack against a Colombian Navy riverine unit on the Guapi River. It examines the reported death of one marine, four wounded personnel, medical evacuation, provisional official attribution and the limits of the available technical evidence.
Original report cover · Open PDF ↗Scope & reporting context
Issued 25 October 2026, reviewing evidence through the same date. Includes Spanish-language reporting, a reproduced Navy communiqué, reconstruction, geographic context, documentary imagery, weapon-evidence assessment and investigative implications. Conflicting time and locality accounts remain unresolved; maps do not identify a verified impact point. Official attribution and weapon descriptions retain their stated qualifications.
The complete PDF contains the report’s source register, assessments and limitations. Read those alongside any individual finding.