On June 11 last year nine divers and wreck hunters went searching for shipwrecks in Baltic off the Swedish east coast. The divers sailed in zigzag pattern back and forth over a large area to search for a number of specific wrecks - when a large, round formation showed up on their scanner screen. They examined the object closely and what they found puzzled the whole world.

The strange object defied explanation and none of the experts could figure out what the big object was.

Stefan Hogeborn, who has contributed to X-Ray Magazine in the recent past, describes the first dive at the world famous circle in the Baltic Sea:

"The first thing we will see is some kind of rock formation that looks to be cast in cement,he said. When they swim further, they see several rock formations. It looks almost like a pearl necklace or that someone has tried to make a fireplace with an inch-sized rocks on the ocean floor.

At the next dive, the team brought a sledgehammer to dislodge a piece of material for sampling. Stefan Hogeborn describes the sense of carbonized material. During the last dive divers discover an oblong hole in one and a half times the six inches that go into one of the rocks which form the circle.

- I have never, ever, ever, seen anything like it, says Stefan Hogeborn.

Expressen has let Martin Jakobsson, a professor of marine geology and geophysics at the University of Stockholm, see an image from the dive." There is probably some kind of sandstone. When you look at the structure, it looks like it", he says.

The samples from the discovery of the Baltic Sea has been sent for analysis.

" Since we did not get any answers to the questions we asked ourselves, we have brought this to the experts who may be looking at the pieces we brought up", says Stefan Hogeborn.