Nigerian police have freed 259 people from an Islamic rehabilitation center in the southwestern city of Ibadan, police said on Tuesday, taking the number rescued from abusive institutions since September to nearly 1,500.

Images from local TV station TVC taken after the captives were released showed a group of mostly young men and teenage boys. Many were emaciated. An infant was also among the group.

"We eat one meal a day," freed captive Olalekan Ayoola, told TVC, saying the food wasn't fit for a dog to eat.