A woman's surprise request to address the Pretoria Magistrate's Court on athlete Oscar Pistorius' "mental state" was quickly turned down on Thursday.

The woman, who said she was an attorney, described herself in her application as: "Annamarie, last name uncertain, previously Riethmiller... ex-wife of Oscar Pistorius' orthopaedic surgeon Dr Gerald Versfeld."

She said it was a Constitutional matter, but Magistrate Desmond Nair quickly dismissed the application.

She said she would appeal, which Nair said she could do if she wanted to.

Pistorius is charged with murdering his girlfriend Reeva Steenkamp, which he has denied in an affidavit.

According to the document "Annamarie" handed to lawyers for the State and defence, the "urgent" motion: "is to have accused, Oscar Pistorius, examined for 60 days under observation by a panel of independent psychiatrist, for such psychiatrist to determine Pistorius' sanity at the time of (by own admission) causing the death of Reeva Steenkamp, and for such panel of independent psychiatrists to provide this court with their reports and opinions as to whether or not Oscar Pistorius [has] the mental capacity to understand his conduct in respect to the victim herein, Reeva Steenkamp, instruct attorneys and advocates, and to be a reliable witness."

She also wanted Nair removed.

She was of the opinion Pistorius was "acting outside his natural character" and was "mentally insane" when Steenkamp entered his home on February 13, the night before the shooting.

The court had to consider a motion for the case to be heard in camera, and for the media to stop making "a circus" of the judicial system, she said in the document. - Sapa

* We have edited this story to reflect the latest information available to us.