Three hundred persons chained together in Rigasa, Igabi Local Government Area of Kaduna State have been rescued by police officers.
The 300 which included were rescued following a raid at a home allegedly used as an Islamic Centre.
According to the police, the victims are from Burkina Faso, Mali and other African countries.
Channels Television gathered that adults were subjected to daily recitation of the Holy Quran and prayers, allegedly accompanied with torture.
There are also claims that some of the children had been sexually abused.