Mystery surrounds the appearance of a turquoise, light shaped UFO which appeared in the sky over Holland.
Nature blogger Harry Perton was taking pictures of the clouds when he was left stunned when he appeared to capture the UFO on camera.
He had been snapping pictures of a storm in Groningen, Holland to upload to his blog last week.
And since the image was posted online, it has sparked a flurry of online debate about what it could be.