Nadine Esterhuizen was found lying dead in a pool of blood at her sister’s home. Picture: Supplied

Cape Town - A woman accused of killing her friend during an apparent Satanic ritual allegedly did it in a fit of anger after a heated argument over her ex-lover.

Corrine Jackson, 20, was arrested for the murder of her alleged lesbian lover Nadine Esterhuizen, 18.

Last week Jackson, who tried to commit suicide after Esterhuizen’s murder, was declared medically and mentally fit to stand trial by a District Surgeon at Heideveld Hospital.

Jackson was being treated for knife wounds in jail. In court last week, she appeared with a bandage around her neck.

Jackson, of Woodlands, is expected to be back in the dock on November 1 for a formal bail application.

Read: Alleged 'Satanic ritual' killer hospitalised after suicide bid

Alleged 'Satanic ritual' killer is fit to stand trial

Sources at Pollsmoor Prison, where she is being held, says Jackson has allegedly admitted to cops that she stabbed Nadine to death during an argument over one of Jackson’s former girlfriends.

Esterhuizen, from Portlands, Mitchells Plain, was a matriculant at Athlone High School, where Jackson apparently fetched her every day with a motorbike.

Esterhuizen’s family denied claims that the two were in a lesbian relationship and said they had only been friends since December 2016.

Jackson’s family, however, reportedly admitted the two were dating.

According to the prison source, Jackson said she killed Esterhuizen during a heated argument on September 27, at Esterhuizen’s sister’s house in Colorado.

Corrine Jackson is suspected of killing her friend in an alleged Satanic ritual. Picture: Supplied

“She said she stabbed Nadine to death because they were arguing over an ex-lover of Corrine’s and it was a jealousy thing,” says the source.

“Jackson has a lot of cuts on both her legs, from the top to the bottom, she says those were made a month or two ago already, but it really looks like a striped jeans when she takes off her pants.”

Last week, Esterhuizen’s sister, 29, who asked not to be identified, told Daily Voice how her fiancé found Esterhuizen in a pool of blood in the kitchen and that her long hair had been cut.

Also read: Satanism claim after girl, 18, found dead with her blood in a cup

She revealed that a cup had been filled with blood and strands of hair added to it.

The sister further described that the word “sorry” had been written on the floor using Esterhuizen’s cut hair.

Jackson was allegedly found inside a locked toilet at the same residence, holding a knife.

The sister claimed Jackson allegedly pretended to be Esterhuizen by responding to her WhatsApp messages while the teenager lay dead in the kitchen.

She says Esterhuizen had obtained an interdict against Jackson in July after she allegedly fractured her skull and threw her cellphone into the ocean.