A mysterious jellyfish-like object was spotted hovering over Groningen skies, in the Netherlands.
Dutch photographer Harry Perton captured the stunning image of the glowing turquoise-coloured object during a stormy evening.
At first, he thought it might have been a bolt of lightning, but to his surprise the image looked much like that of an unidentified flying object (UFO).
"I decided it must have been a strike of lightning – but back at home I saw something strange in one of the photos that I took – what looked like a UFO," Perton told The Mirror.
However, when IBTimes UK asked him about the jellyfish-like UFO, he insisted that the event was purely scientific.
"I think it's meteorological," the Dutch photographer and nature blogger said. "The sun is peeking through a little hole in the storm cloud and that's why the 'object' is green."
This is not the first instance of sighting of mysterious flying objects over European skies. In march this year, a huge bright and blue flash was spotted over the night sky in southern Russia.
The incident sparked UFO sighting rumours as experts remained clueless about the source of the light and weather reports did not predict any storms.
In the same month, a woman in Barwell, Leicestershire also claimed to have spotted two unidentified objects hovering and then merging in the night sky.