This after pieces of wreckage were found in the Mossel Bay area earlier this year.
In total, five pieces from the Boeing 777 have been found in the Indian Ocean since it vanished on 8 March 2014, with 239 people on board.
In March, a Pretoria-based archeologist stumbled across a piece of the plane's engine after it washed up on a beach in Mossel Bay.
The Australian Transport Safety Bureau says Malaysian investigators are in contact with government agencies in South Africa, Mozambique and Mauritius over any further debris that may wash up on these countries' beaches.
