Royal Navy Monitors Russian Frigate and Shadow Fleet in UK Waters

The Royal Navy maintained unbroken surveillance of the Russian frigate Admiral Grigorovich throughout April 2026 as it operated in the North Sea, the English Channel, and the Western Approaches. The Russian warship escorted a submarine and approximately six merchant and support vessels, known as a shadow fleet, intended to circumvent Western sanctions. During the operation, the Admiral Grigorovich paused for fuel and supplies near the Galloper wind farm off the coasts of Suffolk and Essex.

UK forces deployed patrol ships HMS Tyne, HMS Mersey, and HMS Severn, alongside the tanker RFA Tideforce and Wildcat helicopters from the 815 Naval Air Squadron. Additionally, the Royal Navy and NATO allies monitored the Amur-class repair ship PM-82, which remained stationary near the Galloper wind farm for two consecutive months, raising concerns over the security of critical energy infrastructure.

While Prime Minister Keir Starmer had authorized military personnel in March to intercept and detain sanctioned vessels, no such interdictions occurred during this period. Defence Minister Luke Pollard stated that the necessity of naval escorts demonstrates Russian vulnerability to Western pressure. Fleet Commander Steve Moorhouse praised the operational readiness of the crews, noting that the coordinated effort ensured persistent maritime security.