Al-Qaeda plotter Zacarias Moussaoui has been transferred to the maximum security "Supermax" prison, where he is to serve his life sentence in the US.

Federal marshals escorted Moussaoui by private jet to the Colorado jail early on Saturday, officials said.

Moussaoui, the only man convicted of involvement in the 9/11 attacks in the US, was spared the death penalty.

His lawyers lodged an appeal on Friday, saying Moussaoui had lied when entering his guilty plea.

Lawyers asked appeal court to review the trial and to reconsider a ruling that refused him leave to withdraw his guilty plea.

The forewoman of the jury that sentenced Moussaoui has said a lone juror opposed the death penalty.

The forewoman told the Washington Post she never discovered which member of the jury had opposed the death sentence, nor why.

Affidavit

Moussaoui pleaded guilty to conspiracy in April 2005 and said he was to have been part of a second wave of hijackings.

Now he has filed an affidavit denying any connection with the attacks, in which nearly 3,000 people died.

I felt that many of us had been cheated by the anonymity of the 'no' voter Moussaoui juror

On Friday the jury forewoman said the juror who had voted against the death penalty had never identified him or herself, and never put forward their arguments for discussion.

"I felt frustrated," the forewoman said, "because I felt that many of us had been cheated by the anonymity of the 'no' voter.

"We will never know their reason. We will never be able to hold their reason up to the light and the scrutiny of evidence, fact, and law," she told the Washington Post.