Several commemorative gold coins, with a total value of ¥1.55m (about $14,400 or €11,700), were stolen from Bank of Japan's headquarters in Tokyo. According to the BoJ, the suspect is an employee who used to work in the Currency Issue Department.
Source and more info:
https://mainichi.jp/english/articles/20180418/p2g/00m/0dm/094000c
Christian