"The precise cause of death is yet to be confirmed. He has, however, been suffering from complications of diabetes," the family said.

Sisulu, the third-born son of Walter and Albertina Sisulu, was 61.

The SABC, of which he was chief executive from 1994 until 1997, said Sisulu had made a significant contribution not only to the public broadcaster, but also to the nation as a whole.

"He steered the organisation in the post-apartheid era and helped transform it from a state broadcaster into the public service broadcaster it is today."

Former colleagues praised his professionalism and talent .

Press Ombudsman Joe Thloloe said besides being a good journalist, Sisulu boasted tremendous charisma.

"That charisma led to him forming the Writers Association of SA to start professionalising black journalism."

Sisulu was also the founding leader of the Media Workers Association of SA.