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Japanese police have arrested a 73-year-old man suspected of keeping his son in a wooden cage for over 20 years.
Yoshitane Yamasaki said he locked up his son, now 42, because he suffered mental problems and was sometimes violent, according to officials quoted by public broadcaster NHK.
The cage, 1m in height and less than 2m wide, was in a hut next to Mr Yamasaki’s house in the city of Sanda.
The son, who now suffers a bent back, is being looked after by authorities. Read more