There were some weird happenings seen in the skies above Richmond Park this morning.

A passer-by posted the picture on Facebook, with one commenter saying it resembled the "star of David...or Satan."

With 70 comments on the post, speculation was rife as to the possible cause of the spooky pattern.

One commenter jokingly said it was "air traffic controllers playing noughts and crosses," with another thinking it could be chemtrails.

This might be a mystery that remains unsolved, and in reality its probably planes leaving vapour trails in the sky as they fly to and from Heathrow Airport.