ATHENS, Greece - Greek archeologists have discovered two Roman-era sculptures built into a sunken ancient harbour wall on the Aegean Sea island of Kythnos.

A Culture Ministry statement says the stone torso of a man in armour and the head of a bearded man were found during an underwater survey in September at Mandraki, on western Kythnos.

The statement said Thursday it was unclear whether the head matched the torso, which stands some 1.4 metres high. They date from the era of Rome's control of Greece, between 146 BC and AD 330.

Both pieces were found 2.5 metres deep, and had been reused during ancient times as building material for a wall protecting the harbour. Previous surveys at Mandraki have located submerged piers and building material.

Kythnos lies about 100 kilometres southeast of Athens.