A 32-year-old ammunition collector was arrested Tuesday for allegedly mailing a package containing a live artillery shell that exploded the previous night at a branch of the Yamato Transport Co. parcel delivery firm.
Norihisa Kotani, a sheet-metal worker who lives in the city of Fuji, is believed to have sent several packages containing ammunition, including the one that exploded at the Shinshizuoka branch of Yamato Transport in Susono, Shizuoka Prefecture.
A part-time employee sorting out packages was injured in the explosion.