RAF fighter jets were scrambled to a Russian military aircraft spotted flying close to UK airspace.
Two Typhoons from RAF Lossiemouth in Moray took to the skies over the North Sea to closely monitor an approaching Russian Bear-F aircraft on Thursday, the Ministry of Defence said.
The Russian reconnaissance aircraft had been detected in the UK’s area of interest but it did not enter UK airspace.
Luke Pollard, minister for the armed forces, said: “Our adversaries should be in no doubt of our steadfast determination and formidable ability to protect the UK.
“The Royal Navy and RAF have once again shown they stand ready to defend our country at a moment’s notice and I pay tribute to the professionalism and bravery of those involved in these latest operations.”
It comes after the Royal Navy observed Russian military vessels passing through the English Channel over the past week.
HMS Iron Duke and tanker RFA Tideforce shadowed three Russian vessels, which were led by the new frigate Admiral Golovko.
The Golovko was accompanied by oceanographic research vessel Yantar and supporting tanker Vyazma. All three had been tracked by the Norwegian Navy before British forces took over.
The Duke class frigate and Tide-class tanker, supported by an RAF P-8 Poseidon maritime patrol aircraft, followed the ships through the Channel before handing over duties to the French Navy.
As the Golovko continued her journey, Iron Duke took over shadowing duties of the second Russian group.
Frigate Neustrashimy and her support ship, tanker Akademik Pashin, were travelling to their home port in the Baltic.
Iron Duke remained in contact with the pair back through the Channel and into the North Sea before handing over to a Dutch warship.
It is understood this is the second time in three months the Royal Navy and RAF have detected Russian ships and aircraft within a week of each other.
Last month the US released a video of a close-call encounter between a Russian fighter jet and a U.S. Air Force F-16 sent to intercept it.
In the video, the Russian plane comes from behind the camera and swoops by the U.S. jet, just feet from the aircraft near Alaska.