The 30-year-old FHM model was earlier identified as the woman who was shot by Olympian Blade Runner Oscar Pistorius at his home in Silver Woods Estate in Pretoria.
And by noon today Twitter had a trending topic of #RIPReeva, with many sending their messages to her family.
Miss South Africa 2004 Claudia Henkel wrote on her page: “One of the most beautiful girls I ever met, inside and out RIPReeva”.
Miss South Africa 2000 Jo-Ann Strauss wrote: “So sad for ReevaSteenkamp's family and for OscarPistorius.This highlights how unsafe most South Africans feel because of crime.RIPReeva”.
Other celebrities tweeted:
Zone 14 actress Pearl Thusi wrote: “Reeva speaking xhosa. The sweetest thing. RIPReeva”.
Actress Lee-Anne Summers said: “Shocked and shattered.. RIP Reevs, thanks for the great times, u will never be forgotten </3 RIPReeva”.
TV personality Lall Hirayama said: “I'm in utter shock and disbelief! RIPREEVA”.
Former radio presenter Zuraida Jardine tweeted: “reevasteenkamp, you are officially an angel today. RIPReeva”.
Playboy model Tshegofatso Seakgoe said: “A beautiful girl now a beautiful angel. You will be missed RIPReeva”.
Actress Terry Pheto tweeted: “This is Tragic!! My heart goes out to both families. OscarP”.
Reality show star Letshego Mosgoeu said: “R.I.P. reevasteenkamp. It was a pleasure meeting u last week Thursday. Sad”.
Singer Loyiso Bala said: “I'm absolutely saddened by today's turn of events. Both for Oscar and Reeva. Peace reign! RIPReeva”.