Exactly a year after South Africa's worst air disaster, in which a Boeing 747 plunged into the Indian Ocean killing 160 people, the world's deepest ocean search for wreckage is finally producing results, Pretoria said on Monday.

The government said a large piece of the South African Airways jet had been seen on the ocean floor near Mauritius where the aircraft went down on a flight from Taipei.Other bits of wreckage had been found, including parts of an engine and pieces of the galley, wings and the cargo compartment floor.

But there is no sign of the two flight recorders, which could give clues to the disaster.