So far two people have come forward claiming they witnessed two bursts of light just before the formation appeared. This phenomena has been witnessed before, most famously in the East Field, Wiltshire, in the summer of 2007. Genuine formations do indeed seem to be an electro-magnetic phenomenon.
A giant and intricate crop circle that appeared, seemingly overnight, on a farm in Salinas Valley, California has been drawing large crowds.
The circle was reported by two friends who claimed on YouTube to have witnessed two bursts of light before dawn on Sunday morning.
Such is the demand to see the mysterious phenomenon that security guards have been employed to keep onlookers at bay.
So far no one, terrestrial or extra-terrestrial, has come forward to claim responsibility