Police arrested four men Wednesday on suspicion of breaking into the house of a telephone dating club operator in February and stealing about 100 million yen in cash and 40 million yen in jewelry.
The suspects, two Japanese and two Chinese, allegedly broke into the house of Keiichi Morishita in Nakano Ward, Tokyo, on Feb. 27. Morishita, 50, is the owner of "Rin Rin House" a dating club with about 90 outlets nationwide.
The police said the four are also suspected of injuring Morishita's wife and child while tying them up with tape. The wife and child mainly suffered light face injuries.
All four have reportedly admitted to the charges.
One of the Japanese, identified as Yoshiaki Shinohara, 31, is a key figure in a gang affiliated with Yamaguchi-gumi, the nation's largest crime syndicate, police said. The two Chinese have been indicted on charges of violating the Immigration Control Law. Yamaguchi-gumi is one of 25 yakuza organizations as designated by the prefectural public safety commissions in charge of supervising local police forces.
The police are pursuing the whereabouts of six more Chinese thought to be involved in the incident.
The break-in occurred a day before payday, when Morishita had the salaries of about 500 employees locked in a safe at the house.