This clip involves an intriguing piece of footage captured at Doncaster Airport in the United Kingdom.

A local father and son were watching arriving airplanes when they began to film one that was approaching.

However, unbeknown to the witness, he had the setting on slow motion. This meant the footage, when played, was much slower than it should have been.

However, because of this, the pair were able to see a strange disc-shaped object speeding across the screen in the background.They had not seen it with their naked eye.

However, the more they viewed it, the more convinced they were that it was not a bird or a drone. Once the footage appeared online many UFO researchers were quick to state how credible the video likely was.

Not least due to the straight-line motion that it moved in and the fact that it moved much too fast.