Another Arab man has been arrested in connection with Guantanamo Bay; this time a civilian translator carrying CDs and papers that may have contained classified information: Guantanamo translator arrested. (Hat tip: Thom.)

The FBI was called to make the arrest after U.S. immigration officials found a man identified as Ahmed Melhalba carrying CD-ROMs and paper documents allegedly related to the detainees.

Melhalba is the third person arrested in what appears to be a widening investigation of possible espionage at the base where suspected al Qaeda and Taliban terrorists are held.

Melhalba is described as a civilian translator, and was arriving at Logan on a flight from Egypt.

Officials emphasize that Melhalba is not a member of the military and is being held by civilian law enforcement.

A Bush administration official said agents from the Bureau of Immigration and Customs Enforcement did not have any advanced intelligence on Melhalba.

The official said that when Melhalba [was] asked what was on the CDs he was carrying, he said “videos and music,” but on examination the CDs were found to contain “information that appeared to be classified related to Gitmo.”