Officials from the Tokyo District Public Prosecutors Office and police entered Olympus offices in Tokyo today, the company confirmed in a statement.

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In November, the police discovered a mummified corpse in a hotel near Narita, Tokyo's airport.

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During police interrogations, Jong Nam said that his life-long desire was to visit Tokyo Disneyland.

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This included entertainment by geisha, flights in police helicopters, sidetrips to Kyoto (250 km from Nagano) and shopping in Tokyo, where they and their friends were offered cam eras and compact-disc players.

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The police are particularly vigilant in preventing unauthorised people getting near the stricken plant, owned by Tokyo Electric Power (Tepco), Japan's biggest utility.

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