Father Allegedly Caged Son For 20 Years

 A father who allegedly confined his mentally ill son in a small cage for more than two decades was arrested on Saturday  in western Japan, police and news reports said.

Police arrested 73-year-old Yoshitane Yamasaki on suspicion of imprisoning his son, now aged 42, at their house in the city of Sanda in Hyogo prefecture, a local police spokesman told AFP.

Further details of the case were not available as the investigation is still underway, the spokesman said.

The son was forced to live inside a wooden cage - 1m high and 1.8m wide - built in a prefabricated hut next to the main house.

The suspect has reportedly admitted the allegations