died of natural causes at the age of 88. In April 2020, a report from the National Police Agency shows that the total number of members of organized crime gangs fell to historical lows, having just 2,800 members and 1,700 associated members. On May 31, 2022, Isao Seki, the eighth leader of the Sumiyoshi-kai, died at the age of 76. Shūji Ogawa, who holds the position of kaicho, is the leader of the Sumiyoshi-kai at the time of Isao Seki's funeral. References Organizations established in 1958 1958 establishments in Japan Yakuza groups