Mysterious 'ice monster' spotted in Alaska

A mysterious 'ice monster' has been spotted in Alaska.

The CIA is inviting comparisons with the Loch ness Monster- because state officials say they have no idea what it is.

This video was taken by an employee of the Alaska Bureau of Land Management who was just checking the river when he noticed something moving.

See also: Students spot Loch Ness Monster on cruise

See also: Legendary sea monster spotted on Google Earth

Of course it wasn't his job to decide whether it was a sea monster so he has recorded the scene and left well enough alone.

Now a lot of people have been going online to offer up their theories...