Beautiful footage of a circular "hole" appearing during a cloud formation in skies over Quebec.

The video, captured on December 4, shows a massive cloud broken up by what appears to be a mysterious hole.

The filmer later wrote online: ''I noticed an amazing cloud formation in the sky, and had to drive to the highest point of Montreal to get the best of the event.''

''It was overcast all over the city, except for a massive hole in the sky.''

''It was quite spectacular.''