Dez Wade/MoD/Crown Copyright
A Royal Navy lookout onboard HMS Richmond, observing Russian aircraft carrier Admiral Kuznetsov, rear second right, and Russian Battlecruiser Pyotr Velikiy on the right, which are part of a Russian task group during its transit through the North Sea.
"When these ships near our waters we will man-mark them every step of the way. We will be watching as part of our steadfast commitment to keep Britain safe," a Ministry of Defence spokesman told the Telegraph.
The Admiral Kuznetsov task group, which includes the carrier, battlecruisers, and smaller destroyers, set out for Syria's coast in the Mediterranean to continue the brutal siege of Aleppo, a strategically important city in northeastern Syria that government forces have tried to retake control of for years.
Britain's Prime Minister, Theresa May, called Russia's actions in support of Syria's Assad "sickening atrocities."
The Royal Navy is no stranger to run-ins with Russia's fleet, as tensions between Russia and the West mount and as Russian submarine activity spikes to its highest level since the Cold War.
Norwegian navy ships photographed the aircraft aboard the Kuznetsov taking off, in apparent practice for their upcoming carrier-based strikes against Aleppo.
Norwegian Navy
Planes practice taking off from Russia's only aircraft carrier on it's way to support Assad in Aleppo.
The pictures do not indicate conclusively whether or not the customary tugboat sails alongside the Kuznetsov, which has been plagued by mechanical troubles in the past.
The Royal Navy's The Type 45 destroyer HMS Duncan will monitor the group, the Associated Press reports.