Russian submarine tracked by British Royal Navy patrol ship through English Channel

A navy spokesman said: 'Mersey reported on the movements of the Russian Black Sea Fleet submarine, so that Nato allies could track her progress as she continued her onward journey'

HMS Mersey. Picture: Andrew Matthews/PA

A Russian submarine has been tracked by a British Royal Navy warship as it travelled in the North Sea and through the English Channel.

Portsmouth-based patrol ship HMS Mersey has been tasked with keeping watch on the surfaced Kilo-class diesel powered attack submarine RFS Rostov Na Donu during its journey from the Baltic to the Mediterranean.