A former KGB special forces soldier is being investigated as the double agent who tipped U.S. authorities to a Russian spy ring that included Anna Chapman and nine others, European media reported Thursday. Col. Alexander Poteyev, who served in the U.S. as part of the Russian intelligence service, is being looked by Russian authorities as part of a criminal probe for “high treason,” Russian intelligence sources told the Interfax news service. “As far as I know, a criminal case has been opened into Poteyev’s treachery and it perhaps concerns high treason, a crime with which Article 275 of the Russian Criminal Code deals. Investigators are working,” the source told Interfax. Poteyev was a member of the KGB’s elite “Zenith” Special Forces unit during the Soviet occupation of Afghanistan and his father was a hero in the former Soviet Union, the U.K.’s Telegraph reported. Chapman, a glamorous redhead who posted racy pictures on her Facebook page while in the U.S., was deported with nine others in July as part of the biggest spy swap since the Cold War. Since, she’s appeared in a glossy magazine spread and was awarded the highest state honors by Russian President Dmitry Medvedev.(NBC)