This is the second time this week a victim has been rescued from horrific conditions in their parents’ house in Nigeria.
On Wednesday, police in north-western Kebbi state rescued a 10-year-old boy from an animal pen where he had been kept for two years by his parents.
Another Nigerian man has been rescued from the garage of his parents’ house in the northern city of Kano, where he had been locked up for three years, police say.
Ahmed Aminu, 30, was discovered after a police raid on the family’s residence.
Neighbours had alerted a local NGO about his plight, and the police were then called.
Mr Aminu’s father and step-mother have been arrested and police say further investigations are under way.
In a horrific video shared on social media, Mr Aminu, looking abnormally thin and weak was too frail to walk, so he was assisted into a vehicle as he was taken to a hospital.
He had visible calluses on his knees and his bones were seemingly seen through the little flesh left on him.
“We found Aminu in a terrible situation, urinating and excreting in same spot without [being] given any food and looking like he was going to die at any moment,” Haruna Ayagi, head of the Human Rights Network NGO, told the BBC.
Police said the man had been locked up by his parents on suspicion of drug abuse and left without proper food and health care.
Some reports said he had been locked up for seven years.