In this undated handout photo taken from the Sussex Royal instagram account, Britain's Meghan, the Duchess of Sussex visits the memorial to a murdered South African student as a "personal gesture" after "closely following the tragic story".
South Africa is plagued by gender-based violence, with at least 137 sexual offences committed per day, according to official figures.
Meghan paid tribute at the post office where 19-year-old University of Cape Town student Uyinene Mrwetyana was raped and murdered last month.
She also spoke to the mother of Mrwetyana to relay her and her husband Prince Harry's condolences.
In August alone, more than 30 women were killed by their spouses.
South African women have been wearing black and marching on parliament, the stock exchange and through the streets, with thousands using the hashtag #AmINext to call for reform.
Meghan - an outspoken women's rights advocate - is in South Africa as part of a 10-day official trip with her husband Prince Harry and their baby son Archie.
Mrwetyana, a first-year film student from Cape Town was found brutally murdered at a Post Office earlier this year. "But now that we are with you, we are eager to learn and see first-hand the work that you're doing, the vital work that you're doing, and that everything that is being done on the ground is making the great change that you not only need but that you deserve". He will also meet President Peter Mutharika and visit a national park before rejoining Ms. Meghan and Archie in South Africa. She also wrote, in the native language of Xhoas, "We stand together in this situation".
Harry is now on a three-day tour of Angola, where he visited several land mine clearing projects - a cause his late mother Diana took particularly to heart.
On September 28, Mr. Harry met Angolan President Joao Lourenco at the presidential palace in Luanda.