Convicted September 11th conspirator Zacarias Moussaoui has been transferred to the maximum security prison in Colorado where he will begin serving a life sentence.
Moussaoui (37) was removed from an Alexandria, Virginia, detention centre last night and flown to Florence, Colorado, accompanied by US Marshals, the Justice Department said in a statement.
Moussaoui was sentenced last week to life in prison for conspiracy in the September 11th attacks.
Last night, he appealed his life sentence and a federal judge's denial of his request for a new trial.
In a one-paragraph statement, Moussaoui's lawyers said he wanted the 4th US Circuit Court of Appeals to review the final judgment and sentence issued on May 4th and a court ruling denying his request to withdraw his guilty plea and set a new trial.
Earlier this week, US District Judge Leonie Brinkema denied Moussaoui's request to withdraw the plea.
The French citizen of Moroccan descent pleaded guilty to six counts of conspiracy in April 2005, saying he was an al-Qaeda operative and was supposed to be part of a second wave of hijackings in the United States.
The Florence prison is designed to house offenders who require the highest level of security based on institutional misconduct or nature of their offence, the department's Federal Bureau of Prisons said in a statement.