Australian Muslim convert David Hicks, captured in Afghanistan and held at Guantanamo Bay, has been arraigned on three criminal charges: US Charges Australian Guantanamo Prisoner Hicks.

Hicks, captured in Afghanistan in late 2001 and held for more than two years at the U.S. naval base at Guantanamo Bay, Cuba, was charged with conspiracy to commit war crimes, attempted murder by an unprivileged belligerent and aiding the enemy. Hicks, 28, will face trial before a U.S. military tribunal, although no date has been set, the Pentagon said.

While the United States holds about 595 non-U.S. citizens at Guantanamo Bay, Hicks became just the third to be charged. The other two men, from Yemen and Sudan, were charged in February with conspiracy to commit war crimes.

The Pentagon accused Hicks, a convert to Islam, of traveling to Afghanistan to join al Qaeda and fighting with the Islamic militant group, blamed for the 2001 attacks on the United States, until his capture.

At the Guantanamo base, U.S. officials refused to say whether Hicks had cooperated with interrogators. He is being held in a one-person cell divided by a metal mesh fence. His lawyers can converse with him through the fence and work at a table on the other side.