There have been some unusual sightings in Glasgow's sky over the last few days, including a military aircraft seen circling over Glasgow Airport.
The Bell Boeing V-22 Osprey was spotted in the sky over the city around 6.30pm on Friday before landing just outside.
The Osprey can be identified through its plane-like fuselage and two helicopter-style rotors which mean it can take off vertically rather than using a runway to get off the ground.
A snap of the aircraft sitting at Glasgow Airport was captured by enthusiast photographer Thomas Flynn, reports the Daily Record.
Pictures and video of the unique tilt-rotor aircraft were also shared by locals on social media.
Barry Kelly told Glasgow Live: "Spotted a US Military Boeing V22 Osprey doing circles over Glasgow City centre yesterday at about 6pmish.
"It was in full flight mode doing loops around the city centre."
One person said on Twitter: "Unusual plane circling low over Glasgow east end at 18.29 today. Not on flight radar. Potentially a Bell-Boeing Osprey?"
Another added: "V22 Osprey flying over Glasgow right now. This normal here now?"
While the origin and ultimate destination of the aircraft are unknown - as military aircraft movements are largely hidden from publicly accessible platforms like FlightRadar24 - Ospreys have been spotted in UK airspace in the past.
The United States Air Force (USAF) keeps the aircraft at RAF Mildenhall in Suffolk, where it is used by the 7th Special Operations Squadron for top-secret missions involving US special forces.
Mildenhall, together with its sister base Lakenheath, is under the control of the USAF despite being a British military base.
Earlier this week Glaswegians spotted a huge Royal Air Force plane completing loops over the city as part of a night-flight training exercise.
