A former Chinese badminton coach involved in training Japanese Olympic athletes has been arrested in connection with a series of sex-parlor robberies, according to police sources.

The sources said the suspect, Li Huarong, 26, was part of a six-member Chinese gang that police believe was responsible for 34 sex parlor robberies that took place in Tokyo, Chiba, Miyagi, Kanagawa, Osaka, Hyogo, Aichi, Hiroshima and Fukuoka prefectures between March and October.

Most of the establishments robbed were run by Chinese residents, and a total of 46 million yen was reportedly taken.