Army Capt. Yousef Yee, a Springfield, N.J., native who served at the prison camp for terror suspects in eastern Cuba, was released from pretrial confinement on Tuesday after being served with the additional charges, Raul Duany, a spokesman for U.S. Southern Command in Miami, told The Associated Press.
Adultery is a crime under the uniform code of military justice.
He was arrested earlier this year in Florida and confined to the military brig in Charleston, South Carolina.
Military officials brought the additional charges after a lengthy investigation, Duany said. The charges include storing pornographic images on his computer, having sexual relations outside marriage, disobeying an order and making a false official statement.
Yee will be sent to Fort Benning, Georgia, where he will continue to perform religious duties and where he will be barred from having any contact with personnel at Guantanamo, said Duany.
Yee, a Chinese-American who converted to Islam after graduating from West Point, was arrested Sept. 10 in Jacksonville, Florida.
Federal agents said they found the native of Springfield, New Jersey, carrying sketches of the military prison at Guantanamo Bay, Cuba, where he counseled prisoners accused of links to Afghanistan's fallen Taliban regime or the al Qaeda terror network.