WASHINGTON (AP) - NBC News says a former vice chairman of the Joint Chiefs of Staff is under investigation for allegedly leaking classified information about a covert cyberattack on Iran's nuclear facilities.
The network says retired Marine Gen. James "Hoss" Cartwright has received a target letter informing him of the probe.
The Justice Department referred questions to the U.S. attorney's office in Baltimore, where a spokeswoman, Marcia Murphy, declined to comment.
In June 2012, the New York Times reported that Cartwright was a crucial player in the cyber operation Olympic Games, started under President George W. Bush.
The Times said President Barack Obama ordered the cyberattacks sped up, and in 2010 an attack using a computer virus called Stuxnet temporarily disabled 1,000 centrifuges that the Iranians were using to enrich uranium.