An American citizen has been detained in Russia over spying allegations leveled by the country’s domestic security service, Reuters reported early Monday.
The FSB, the country's main security arm, said the unidentified American was detained in Moscow on December 28 and there is a criminal case against him, according to the report.
The FSB said the American faces up to 20 years in jail if convicted, TASS news agency reported.
The U.S. State Department did not immediately respond to Fox News for comment.
The FSB, which conducts domestic intelligence and counterintelligence, is a spin-off from the KGB after the collapse of the Soviet Union. A former KGB agent, Vladimir Putin ran the FSB before ascending to the presidency.
