The Royal Navy have been forced to scramble in response to Russian warships spotted off the UK coast.
A Type 23 frigate has been deployed to follow the Russian armada in the North Sea, which are capable of carrying nuclear weapons.
Five warships and two support vessels, equipped with Kalibr cruise missiles, were located in the North Sea on Wednesday.
It is reported that the Russian fleet have converged from multiple bases in a "show of force" ahead of King Charles' Coronation, which takes place on Saturday.
A UK defence source told The Sun: "We are aware of a small number of Russian vessels which are exercising around the UK and we are monitoring the situation closely."
The Kalibr is a Russian land attack cruise missile with a range of up to 1,500 miles and can pack 1,100lb of explosives or a thermonuclear warhead, according to the Center for Strategic and International Studies 'Missile Threat' data base.
Navy chiefs have now deployed the frigate armed with harpoon anti-ship missiles to keep a watch of the flotilla.
Poseidon P-8 maritime patrol aircraft were also deployed by the RAF to shadow the ships, which are being tracked by US and Norweigan allies in addition.
Among the Russian warships are the Admiral Grigorovich, the corvettes Sbrazitelnyy, Stoikiy and Odintsovo, along with the tug Grebelsky and tanker Kama.
Bizarrely, the Russian fleet also includes a frigate from the Black Sea Fleet, according to naval expert H.I Sutton, which was not able to return to Crimea after Turkey closed the Bosporus to warships, he explained.
It's understood the Kalibr cruise missile is capable of land attacks from up to 1,500 miles away and can carry 1,100lb of conventional explosives or a thermonuclear warhead, according to the Center for Strategic and International Studies 'Missile Threat' data base.
The weapon has already been used in the Russian Navy's efforts against Ukraine after it was first used in Syria in 2015.
It comes after the RAF tried to intercept a Russian spy plane after it was recently spotted close to UK airspace.
The Tu-142 aircraft - known as a Bear-F -was seen over the Norwegian Sea north of Scotland on Sunday, but luckily did not enter our airspace.
Another near-miss happened recently when a British spy plane was nearly shot down by the Russians after a missile malfunctioned.