Overview
- The Kareliya was detected on October 29 about 15 nautical miles south of Oahu, outside the 12‑nautical‑mile U.S. territorial sea.
- A Coast Guard HC-130 Hercules conducted an overflight and the Cutter William Hart transited near the vessel in a safe, professional response.
- The service says monitoring continues to provide maritime security for nearby U.S. traffic and to support homeland-defense efforts.
- Identified as a Vishnya-class signals-intelligence ship, the Kareliya fits a pattern of Russian collection vessels observed near Hawaii in recent years.
- Coast Guard Oceania District is coordinating with U.S. Indo-Pacific Command and interagency partners, and Russian officials have not issued public comment.