A 2,000-year-old mosaic has been discovered during excavations at a Roman site in Shropshire.

The piece at Wroxeter Roman City depicts brightly-coloured dolphins and fish.

It was uncovered during work to search for the main civic temple.

“Our excavations were in hope of discovering the walls of this building, but we never suspected we would find a beautiful and intact mosaic, which had lain hidden for thousands of years,” said Win Scutt, from English Heritage.