Glasgow residents had been left scratching their heads because the skies had been shattered by the sound of an enormous, low-flying RAF navy airplane doing loops of town late final evening.
The Airbus A400M plane might be heard by locals because it appeared to circle town, whereas performing varied take-off and touchdown manoeuvres at Glasgow Airport.
Flight monitoring service Flightradar24 confirmed the airplane flew repeated loops above the north and south of the River Clyde earlier than descending to an altitude of at the least 600 toes on the airport - after which taking off once more.
The large turboprop navy airplane was tracked because it flew as much as town from its base at RAF Brize Norton in Oxfordshire, studies Glasgow Dwell.
It then getting into the airspace above Scotland's largest metropolis at round 10.35pm on Tuesday evening, earlier than returning south of the border round 35 minutes later at 11.10pm.
Residents took to Twitter to share information of the airplane's presence over Glasgow final evening, with one tweeting: "Large A400 doing low degree flying about Glasgow tonight. Flight from Brize Norton."
One other appeared to have had their sleep disrupted by the flight, writing: "Gasoline disaster? Then why have the RAF acquired planes doing laps spherical Glasgow at the moment", together with a sleep emoji.
A 3rd quizzed: "Anybody acquired an thought why this RAF flight from Brize Norton is circling Glasgow Airport, dropping down to some hundred toes, however not touchdown?", with a fellow Twitter consumer responding with "Coaching apparently."
They had been joined by a fellow bemused resident who wrote: "RAF airplane circling Glasgow, retains dropping to simply above the airport then climbs and does one other loop. Bizarre!"
The RAF Airbus A400M Atlas, which prices within the area of €150 million per unit, operates as a tactical airlifter to ship provides or personnel.
An RAF Spokesperson: "A Royal Air Drive Atlas A400M plane from RAF Brize Norton in Oxfordshire was finishing routine and pre-authorised night-flying coaching round Glasgow yesterday night.
"The RAF use a wide range of places across the UK for coaching as they supply complicated airspace and differing challenges for our pilots to make sure we stay prepared and capable of deploy on international operations."
Do not miss the newest information from round Scotland and past - Signal as much as our every day e-newsletter right here.