Moscow, Dec 31, SPA -- Russian former Nuclear Energy Minister Yevgeny Adamov was in prison in Moscow on Saturday, local agencies reported, after Switzerland agreed to extradite him to Russia, where he is accused of fraud while in office. Adamov was arrested while visiting Switzerland in May on the basis of a separate U.S. extradition request to face charges of embezzling $9 million Washington sent to Moscow to help fund nuclear safety projects. "Adamov ... was delivered to Moscow and placed in a special isolation ward at the Matrosskaya Tishina detention centre on Saturday morning," a Penal Service spokesman told Interfax. Adamov, who served under former President Boris Yeltsin, had insisted he be sent back to Russia. The United States has said it is disappointed with Switzerland's decision and called on Russia to see "justice is done". A police source told Interfax that Russian prosecutors were preparing to launch an investigation. --SPA 13 25 Local Time 10 25 GMT www.spa.gov.sa/315834