Police in Hamamatsu, Shizuoka, have arrested a 15-year-old for placing a small rock on the train tracks of the JR Tokaido Line.
According to police, the boy is suspected of placing the rock on the tracks in Higashi Ward at around 5 p.m. on Nov 29, Sankei Shimbun reported.
A passerby saw the rock and removed it before a train came along. He then went home and contacted police. The suspect was identified through street surveillance camera footage.
Police said that in August and September, there were five cases of bicycles and small concrete blocks being left on the same tracks, which resulted in damage to trains that ran over them. Police are questioning the boy about his involvement in those incidents.© Japan Today