Qwelane’s death was confirmed by his attorney Andrew Boerner earlier on Thursday.
He made his mark as a print journalist and worked as a reporter for The Star and Sunday Star, for which he also wrote columns. He produced op-ed pieces and had two regular columns in the 1990s: Jon’s Jive, which appeared on Saturdays, and Just Jon on Sundays.
Qwelane was a founder member of the Writers Association of SA and was the recipient of the SA National Editors Forum coveted Nat Nakasa Award in 1998.
He was appointed as South Africa’s ambassador to Uganda in 2010.
His family has asked for privacy during this difficult time.