British archaeologists uncover major Roman ampitheatre

Archaeologists from University of Southampton work at the site of the ancient port of the Roman Empire near Rome, Italy Photograph: Chris Ison/PA

Computer generated image released by Southampton University showing awnings set up at the end of the Severan warehouse at the entrance to the Trajanic basin Photograph: Southampton University/PA

Computer generated image of Portus amphitheatre Photograph: Southampton University/PA

Rose Ferraby from the University of Southampton working on a three seat communal toilet discovered at the site of the ancient port of the Roman Empire near Rome Photograph: Chris Ison/PA

Professor Simon Keay inspects cellars, untouched for almost 2,000 years, at the site of the ancient port of the Roman Empire near Rome Photograph: Chris Ison/PA

28 August 2009: Excavation at the Imperial Palace at Portus Photograph: Hembo Pagi/PA

Computer generated image released by Southampton University showing the lighthouse or 'Lanterna' at the entrance to the inner harbour Photograph: Southampton University/PA

A statue head as it was excavated by British archaeologists near Rome Photograph: Southampton University/PA

The fully excavated statue head Photograph: Southampton University/PA