Police found nearly 300 people held in captive in an Islamic school in Daura area of Katsina.
The raid in Katsina, the northwestern home state of President Muhammadu Buhari, came less than a month after about 300 men and boys were freed from another supposed Islamic school.
President Cyril Ramaphosa played host to President Muhammadu Buhari of Nigeria on a state visit. The President writes that it turned out to be an extremely successful visit.
Nigerian President Muhammadu Buhari said on Friday that a wave of deadly violence against Nigerians and other foreign nationals in South Africa last month was an embarrassment to the continent.