Johannesburg - The trial of four men accused of torturing and raping a Modimolle woman was expected to start in the Pretoria High Court on Monday.

Johan Kotze, 50, is accused of orchestrating the gang-rape of his estranged wife Ina Bonette and killing her son.

Kotze allegedly hired Andries Sithole, Peter Mohlako and Sello Mphaka to work in the garden of his rented home in Modimolle.

On January 3, he allegedly forced them at gunpoint to rape his ex-wife and mutilate her with objects including nails, a screwdriver, and an angle-grinder.

Kotze also lured his stepson, Conrad, to the house and allegedly shot and killed him.

The men face seven charges and three alternative charges including rape, murder, kidnapping, attempted murder and attempt to do grievous bodily harm. - Sapa