Two RAF Typhoon fighter jets have been spotted over Scotland after squawking a "quick" reaction alert.
The aircraft took off from RAF Lossiemouth using the 1307 squawk code, meaning NATO air policing reports the Express.
Aircraft and satellite tracker SkyScanWorld said it is possibly a practice operation involving a Dassault Falcon with tanker support from an RAF Airbus Voyager.
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The jets were seen crossing northern Scotland towards the Outer Hebrides on Tuesday.
SkyScanWorld tweeted that it is possibly linked to a German Air Force Eurofighter which took off from Laage Air Base and was spotted near Poland's Baltic Sea coast.
It comes after a huge military jet was seen cruising across the UK last Thursday.
The massive RAF C-17A Globemaster III set off from RAF Brize Norton in Oxfordshire before flying in a series of circles around Temple on Bodmin Moor.
It is capable of transporting 100,000lb (45,360kg) of weight while flying higher than 35,000ft.
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RAF Typhoons, based at RAF Lossiemouth and RAF Coningsby, are described by the Royal Air Force as "highly capable and extremely agile" multi-role combat aircraft.
Their maximum speed is Mach 1.8 and they can soar to a maximum 55,000 feet.
They are armed with 27mm Mauser cannon, air to air missiles, Enhanced Paveway II and Paveway IV precision-guided bombs as well as Storm Shadow and Brimstone air to ground missiles.
Typhoons are used to police the skies and in "high intensity" conflict, according to the RAF.
