The Defense Department inspector general has opened an investigation of Marine Corps Gen. John R. Allen, commander of the International Security Assistance Force in Afghanistan, Defense Secretary Leon E. Panetta said in a statement.
The statement said the FBI referred a matter involving Allen to the Defense Department on Nov. 11.
Today, Panetta directed that the matter be referred to the DOD IG for investigation and informed the chairman and ranking member of the Senate Armed Services Committee. The House Armed Services Committee also has been notified, he said.