Police acquired a report that there was one thing like a mine on the coast of Hamamatsu City, Shizuoka Prefecture, and an explosive ordnance disposal group was dispatched. According to the police, what was discovered was a steel sphere with a diameter of about 1.5 meters, and it was confirmed that the within was hole and there was no hazard of explosion. We nonetheless do not know what the sphere is.
A person in his 50s from Hamamatsu City, who was operating on the seashore, mentioned, “There has been one thing like an iron ball on the seashore for greater than a month. I believe the fabric might be iron. There is, nevertheless it was heavy and didn’t transfer.”
Source
About 1.5m in diameter on the coast “Mysterious metal sphere” Shizuoka Hamamatsu | NHK
