Death row inmate Troy Davis has been given a last-minute reprieve, his second in less than a month.

The 40-year-old, from the US state of Georgia, was due to be executed today – 27 October – for the 1989 murder of off-duty police officer Mark Allen MacPhail.

There are serious doubts about his guilt and compelling evidence of his innocence hasn't been heard in court. All but three of the witnesses who testified against him at his trial have since recanted or contradicted their testimony amidst allegations that some of it had been made under police duress.

Last month, on 23 September, Troy Davis – who has always maintain he is innocent – was granted an earlier stay by the Supreme Court, just hours before he was due to be executed.

AP has filed a report to YouTube about the latest reprieve – from a federal appeals court – which came on Friday.

Pope Benedict XVI, Archbishop Desmond Tutu and former US President Jimmy Carter are among those who have spoken out in support of clemency.

Read the latest update on the situation of Troy Davis' case.