The latest suspect facing terrorism charges for the September 11, 2001 attacks is a Guantanamo Bay detainee from Saudi Arabia, who is related by marriage to one of the hijackers, the U.S. Office of Military Commissions announced on Friday.

The suspect, Ahmed Mohammed Ahmed Haza al-Darbi, 32, is the brother-in-law of a member of the hijack squad that crashed American Airlines 77 into the Pentagon on Sept. 11, 2001.

"The accused, al Darbi, is the brother-in-law of the Flight 77 hijacker Khalid al Mihdhar, Flight 77 is the plane that hit the Pentagon on 9/11," said the Pentagon statement.

The military swore out charges Thursday against the Saudi suspect and accused him of conspiracy, although the charges do not specifically link him the 9/11 attacks. He is suspected of providing material to support the terrorist attacks.

Al-Darbi has been detained as an enemy soldier in March 2003 and was held at the U.S. Navy base in southeastern Cuba since then.

The main charges contained by his four-page charge sheet are: conspiring with others to attack civilians, to murder in violation of the law of war and to destroy property in violation in of the law of war.

According to the prosecutors, Al-Darbi had traveled to Jalalabad, Afghanistan to meet with Osama bin Laden. There he joined the al Qaeda's Jihad Wahl training camp and later became weapons instructor at another al Qaeda camp.

He also faces charges of conspiring to hazard a vessel between 2001 and 2002. His part in this plot was to move money from al Qaeda into banks in order to sponsor the plot, the statement said. During that same period, al-Darbi has supposedly set up another al Qaeda attack by traveling to several countries to buy a GPS device, a boat and other equipment.