[Update 12:36 p.m. ET] The FBI is assisting in the investigation as well, its director, Robert Mueller, said Wednesday. Full story
[Update: July 28, 9:38 a.m. ET] The Pentagon is focusing on jailed Army Pfc. Bradley Manning as the main suspect in the leak of tens of thousands of secret U.S. military documents related to the war in Afghanistan, a senior Pentagon official told CNN.
Manning, 22, is believed to have accessed a worldwide military classified Internet and e-mail system to download tens of thousands of documents, according to the official, who would not be identified because of the ongoing criminal investigation of Manning.
Manning was charged in June with eight violations of the U.S. Criminal Code for allegedly illegally transferring classified data, reportedly including an earlier video that wound up on WikiLeaks.org, the website that released the Afghanistan reports Sunday.
The Army is currently considering whether he should face the military equivalent of a trial over the charges.
[Original post July 27, 2010; 9:34 p.m. ET] In the wake of the leak of thousands of classified documents, the U.S. Army has expanded its criminal investigation into a soldier allegedly involved in the earlier leak of a combat video and thousands of military documents, according to the Pentagon.
The expanded investigation was confirmed by Col. David Lapan at the Pentagon.
According to a U.S. military official who asked not to be named because he was not authorized to talk about the investigation, the probe by the Army's Criminal Investigation Division into Pfc. Bradley E. Manning was expanded to look at potential accomplices and what military or U.S. government systems the information came from.
CNN was unable to reach Manning's attorney.