Iran's English-language Press TV on Friday aired footage of Sakineh Mohammadi Ashtiani, a woman sentenced to death by stoning, reenacting what it said was the murder of her husband.

The broadcast came a day after reports from Germany that she had been released, with the Iranian authorities on Friday saying Mohammadi Ashtiani was still in custody and mocking Western talk of her release.

"The defendant's case and judicial situation have not changed and she is still in Tabriz prison. Any news of her release is a sheer lie," Tabriz prosecutor Mousa Khalilollahi told the official IRNA news agency.

"Every once in a while foreign media give this case massive coverage for political aims."

The Press TV report, which included interviews with Mohammadi Ashtiani, her son Sajjad and lawyer Javid Houtan Kian who are also both in jail, did not give new information about the case which has sparked an international outcry.