Putin puzzled why U.S. holding Russian citizen Butina in custody

MOSCOW. Dec 11 (Interfax) - Russian President Vladimir Putin said that he does not understand why Russian citizen Maria Butina is being held under arrest in the United States, while Russian special services know nothing about her.

"You see our unlucky young woman Butina is being held in custody, and she is facing 15 years in prison. For what? When I learnt that something is happening to her, I first just questioned the heads of our special services: 'Who is she?' No one knows absolutely anything about her," Putin said at a meeting of the Russian Presidential Council of Human Rights in Moscow on Tuesday.