A video of the unknown craft surfaced on YouTube and shows a daylight sighting just a few miles from Welwyn Hatfield and Potters Bar, in Hoddesdon.
In the one minute 55 second film a tantalising hovering object is seen pulsating above a TV aerial.
The unidentified flying object seemingly moves in one direction and then the other, dismissing the chances of it being a commercial airliner. . . .