A video showed the bizarre cloud-like phenomena hovering above the Magic Castle at the popular theme park in California on April 27.

Baffled visitors watched it float by, yelling: ‘What is that?’ while a conspiracy theorist said it would cause families to worry of an alien invasion.

A bizarre black ring (pictured) has been filmed floating over the skies in Disneyland in California, sparking theories of an ‘alien portal’

In the footage witnesses were heard exclaiming in shock as the mysterious ring floated above them.

‘Everyone watched it in fear/confusion. I half expected an alien portal to open up through this ring as we were gazing up in disbelief…The strangest thing I’ve ever seen.

‘I yanked my phone out to record as soon as I saw this thing, then immediately uploaded to YouTube. This is raw footage, apologize for shakiness.’

Baffled visitors watched it float by, yelling: ‘What is that?’ in confusion’ as it pᴀssed over them at night-time on April 27

Mr Hawkins uploaded the bizarre video on Youtube and it has since come to the attention of conspiracy theorists