Japan's ad giant Dentsu raided over Tokyo Olympic-related bid rigging

TOKYO, Nov. 25 (Xinhua) -- The head office of Japanese advertising firm Dentsu Inc. was raided on Friday by Tokyo prosecutors and Japan's Fair Trade Commission over possible bid rigging connected to the Tokyo Olympic Games held last year.

Along with the advertising giant, the residence of a senior official at the Tokyo Olympics organizing committee was also searched, and Cerespo Co., an event production company,