Archaeologists are to resume digging at the site after 3D radar technology uncovered a mystery find.

Archaeologists are to resume digging at the Ness of Brodgar on Orkney after 3D radar technology led to an “extraordinary discovery”.

The dig team at the Ness, one of the most important Neolithic sites in the British Isles, are not revealing what they believe the find to be until more work is done.

But they say it is like nothing else ever found at the site – and may not even be Neolithic.