The Royal Navy monitors a Russian frigate, Admiral Grigorovich, in UK waters for roughly a month, according to reporting from multiple outlets. The patrol involves Royal Navy ships HMS Tyne, HMS Mersey and HMS Severn, which track the frigate throughout its presence in the area. The coverage describes the deployment as an extended surveillance operation rather than a single, short patrol. The ships’ role is reported as monitoring and tracking the Russian vessel while it operates near the United Kingdom. No details are provided in the available summaries about specific interactions between the ships, any escort activities, or any incidents. The reports also do not outline the broader purpose of the Russian frigate’s voyage or the precise geographic route covered during the month-long period. Overall, the articles converge on the same core points: the Russian frigate is Admiral Grigorovich, the Royal Navy ships participating are HMS Tyne, HMS Mersey and HMS Severn, and the monitoring lasts for the entirety of about a month while the frigate is in UK waters.