A 54-year-old Brazilian man locked up his daughter in a self-made prison, raped her for over 15 years and fathered her seven children, police said.

Pereira, a farmer from Pinheiro village in Brazil's Maranhao state, kept his daughter for over 15 years in his prison in another village. He started sexually abusing her when she was 12 years old and fathered seven children, now aged between two months to 12 years, police said. His wife had left the family many years ago.