"Tests were done on August 7, at the recommendation of the association's doctor, we don't know the results yet," Athletics South Africa president Leonard Chuene told a media conference here.

Chuene had maintained that no tests had been conducted on the masculine 18-year-old athlete, who has been the subject of a controversial sex row since winning a gold medal in the 800m race at the IAAF games.

A probe into her gender was announced by the sport's governing body the IAAF shortly before the race.

I would like to apologise for the way I handled the manner but I did so to protect her. I would have done that even with my own child.

Leonard Chuene

Chuene said he could not withdraw Semenya from the Championships without any available medical evidence.

"No one has seen the results. We have learnt in the media that she is a hermaphrodite," said Chuena, adding the body had acted in her best interest.

Chuene apologised to the South African public for initially denying knowledge of the test.

"I would like to apologise for the way I handled the manner but I did so to protect her. I would have done that even with my own child," he said.

He said he would resist calls for his resignation from the athletics body saying, "resigning is tantamount to running away."

"I will face this head on, I won't jump ship," he added.

Australian newspapers, citing an unnamed source involved in the IAAF tests, reported that Semenya's results showed she is a hermaphrodite, with internal testes.

The leaked report has enraged the South African public, with the government this week launching a complaint with the United Nations to investigate the violation of the athlete's rights by the IAAF.

The body has distanced itself from the reports, saying a decision will be made in November on the case.