Navy News
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Somerset, a Plymouth-based Type 23 frigate, detected and monitored the movements of the Russian warship Vice Admiral Kulakov and her supporting tanker.
HMS Somerset had been engaged in trials of her cutting-edge sonar equipment when she received the call to locate and shadow the Russian units.
She arrived in the Moray Firth on Saturday (18 November) and escorted the ships through UK waters and north along the coast of Norway before returning to her original task.
Commander Timothy Berry, HMS Somerset's Commanding Officer, said: "As with all Royal Navy ships operating in UK waters, HMS Somerset was at a high state of alert to deal with any maritime security task such as this.
We now continue with our original tasking having seen the Russian ships safely through the UK's area of interest
Commander Timothy Berry, Commanding Officer of HMS Somerset
"Monitoring transits of non-NATO warships through UK territorial waters is part of what the Royal Navy does all year round to keep Britain safe.
"We now continue with our original tasking having seen the Russian ships safely through the UK's area of interest."
The Vice Admiral Kulakov is a Russian Udaloy-class destroyer. It is thought she was returning from a deployment in the Mediterranean. The warship was accompanied by a tanker, which is standard procedure for Russian ships.
It was not the Kulakov's first visit to UK waters as the destroyer was also shadowed by HMS Somerset from the same position in the Moray Firth in March 2016.
Russian warships of the northern and Baltic fleets routinely pass through UK territorial waters en route to or from deployments in the Mediterranean and Gulf regions.
Direct from the front-line, the official newspaper of the Royal Navy, Navy News, brings you the latest news, features and award winning photos every month.