OSAKA -- Farm ministry officials on Friday searched Nippon Food Inc.'s Osaka unit, which was implicated in the defrauding of a state-run beef buyback program, ministry officials said.

Kansai Company, located in Osaka's central Midosuji district, oversees business operations in western Japan for Nippon Food, a subsidiary of Nippon Meat Packers Inc., better known as Nippon Ham.

The officials also questioned Hiroshi Ohigashi, a senior managing director of Kansai Company, in connection with the fraud, they said.