Osaka Prefectural Police on Friday raided the main branch of the high-end Senba Kitcho restaurant group based in the city of Osaka on suspicion over the chain's alleged false labeling of the origin of its beef products in violation of the unfair competition prevention law.

The group, headed by President Masanori Yuki, is also suspected of selling a variety of confectionery and delicatessen items with falsified labels with full knowledge of the illegal practice, investigative sources said.

The searches targeted 12 locations, including the main branch in Chuo Ward and the president's home.