Authorities in Norway have arrested a Norwegian man who worked as a security guard at the U.S. embassy in Oslo, accusing him of passing sensitive information to Russia and Iran. Under interrogation, the man, identified as Mohamed Orahhou, 27, admitted to collecting and sharing information with an officer from Russia’s domestic intelligence service, the S.V.R., as well as with unspecified Iranian officials, according to Norwegian authorities and Mr. Orahhou’s lawyer. The authorities have not released details about the type of information involved, but on Thursday a court in Oslo, citing the seriousness of the accusations, ordered Mr. Orahhou to be kept in custody for four weeks pending further investigation. “This is a very serious case,” Thomas Blom, an official from Norway’s Police Security Service, said in a text message to The New York Times. “We are at the very beginning of a rather extensive investigation.”

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Persons: Mohamed Orahhou, Orahhou, ” Thomas Blom, ” Organizations: U.S, Norway’s Police Security Service, New York Times Locations: Norway, Norwegian, Oslo, Russia, Iran