Archaeologists have discovered what is believed to be a prehistoric ceremonial site on Cave Hill in north Belfast.
It follows a community excavation involving more than 400 people at the site of Ballyaghagan cashel on the Upper Hightown Road, which had never before been unearthed.
Dr Harry Welsh, an archaeologist with Queen’s University, which led the Big Dig project, said some of the earliest items on the site dated back to 3,500 years BC.
He said:”Before we started the dig we thought there would be no big mystery.
"It was a cashel and we would just be in and out again.
"But after a few days we started to see that this site does not conform to all the features of a cashel.
"The medieval lecturers at Queen’s are especially excited by what has been found. Read more.