Archaeologists in Peru have discovered the ruins of an ancient temple, road and irrigation systems at a fortress overlooking the Inca capital of Cuzco.

The lead archaeologist, Oscar Rodriguez, said the temple, on the periphery of the Sacsayhuaman fortress, included 11 rooms thought to have held mummies and idols.

Rodriguez's team of archaeologists believe the structures predate the Inca empire, but were significantly developed and expanded by the civilisation.