People across Glasgow were left bewildered yesterday after spotting an unusual looking plane in the skies above the city.

The aircraft was unlike any they had seen before, long and slim, featuring a huge disk on top.

Many took to social media to share photos and ask what it was they had seen. Some thought it could have been a sky plane or that the disk was some sort of radar or satellite.

One wrote on Twitter : “Anybody else see a weird looking plane flying over Glasgow just now? (West end) Has extra wobbly bits on it, guess it’s radar or something. Not showing up on Flightradar24.”

Another wrote: “Wit is it with this plane flying about Glasgow? Seen it about 6 times now, it has like a satellite thing on the top of it, is it a weather plane or wit?”

A third user shared a photo asking: “Spy plane? Was doing laps round Glasgow as I walked home from work. Passed overhead 4 times. What’s it doing?”

But others were quite excited by the rare sighting, with one writing: “[Glasgow Airport] has a visitor it would seem. I have never seen a plane like this land at Glasgow before, pretty cool.”

So what was the unusual aircraft? It was actually an RAF AWACS E3 Boeing Sentry.

A Glasgow Airport spokesperson said: "It was an RAF exercise. They do this in airfields across the UK."