Painted walls in Orkney '5,000 years old' Published duration 26 July 2010

image caption The coloured stonework has been uncovered at the Ness of Brodgar

Painted walls believed to be 5,000 years old have been found at a Neolithic excavation in Orkney.

The coloured stonework has been uncovered at the Ness of Brodgar, in the heart of the area's World Heritage Site.

Several coloured stones have been discovered, and it is thought the find is the first of its kind in the UK.