The Swiss Justice Ministry said in a statement that Adamov left Zurich late today on a chartered Russian plane.
A Swiss court ruled yesterday that Adamov be extradited to Russia rather than the United States.
U.S. Justice Department officials accuse him of diverting up to $9 million from funds intended to improve Russian nuclear security into private projects in the United States, Ukraine, and Russia.
Adamov was arrested in May on a U.S. warrant while visiting the Swiss capital, Bern.
He was appointed atomic energy minister in 1998 but was dismissed in 2001 amid corruption allegations.
RFE/RL Russia Report
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