UFO hunters have spotted an enormous 500-metre (1640 foot) long object off the coast of Antarctica.

Some have claimed that it is a mysterious alien ship or base hidden underwater in the continent’s ice.

The object was spotted on Google maps and appears to show a large body of ice sheered off the edge of Antarctica.

But conspiracy theorists have put forward the bizarre claim that the object is in fact a large extraterrestrial base.

The object can be seen on Google maps by searching the coordinates 72°43’13.53″S 78°40’21.56″W.

‘I’m not an iceberg expert but this object is really peculiar and looks like a vessel disguised as an iceberg,’ wrote the website UFO Sightings Hotspot.

To most people Antarctica is a barren wasteland of ice and snow found at the bottom of the globe.

But UFO hunters believe it could house extraterrestrial bases and life, acting as the perfect hiding spot due to its lack of human settlers.

Previous strange theories around the continent have suggested that UFOs are parked inside of Antarctic caves.

UFO hunters were particularly interested in the latest finding because of the object’s bizarre shape.

Normally icebergs come in a wide range of shapes and sizes.

But the keen-eyed UFO hunters claim that this iceberg does not fit any of the most common categories of iceberg.

‘Icebergs can be classified on the basis of their shape,’ wrote UFO Sightings Hotspot.

‘The two basic types of iceberg forms are tabular and non-tabular.

‘Tabular icebergs have steep sides and a flat top, much like a plateau, and Non-tabular icebergs have different shapes.

‘The shapes and forms from this iceberg look very different if we compare it with all the different shapes and forms of tabular and non-tabular icebergs.’