Three elephant cows stormed the group and Botha reportedly began shooting at them.
Big game hunter Theunis Botha was killed when the elephant he shot stumbled and fell on top of him. According to the company's website, it specialises in hunting leopards and lions with trained hounds.
A professional big game hunter is dead after he was crushed by an elephant cow that was mortally wounded by a gunshot.
Mr Van Zyl was on a hunt at the Chikwaraka camp in Zimbabwe when he disappeared on April 7.
Botha's death has caused intense commentary on social media, with supporters praising his skills and lamenting the loss, and others saying he got what he deserved.
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Authorities in Zimbabwe say a South African hunter died after being trampled by an elephant.
The 51-year-old was highly regarded for his hunts, The Telegraph reported. This method involved large packs of dogs used to drive deer and boar towards hunters who then open fire on the animals.
DNA samples taken from the contents of two crocodiles that were shot during the search matched that of Mr van Zyl.
Several show Botha standing beside enormous trophy elephants.
Many animal rights groups spoke out against the big-game hunting operations in the area, noting the unnecessary dangers. It adds Botha's wife Carike is expected to travel to Zimbabwe to identity his body and bring his remains back to South Africa for burial.