The mother of Sakura Moriyama, a missing girl from Kurashiki in Okayama Prefecture, contacted police twice before the 11-year-old disappeared on Monday, fearing her daughter might have been falling prey to a stalker, investigative sources said on Thursday.
According to police, Sakura's mother reported that her daughter had been followed by a silver car near their house before her disappearance.
The 11-year-old girl has been missing since leaving school on Monday.