Kano's authorities have started evacuating over 5,000 street children considered a "security threat" amid rising economic challenges.
The Hisbah police have conducted midnight raids on various public spaces, rounding up children as they sleep.
So far, around 300 boys have been taken to a rehabilitation camp for support, as officials express concerns over their potential for criminal activity.
The economic crisis in Nigeria has intensified the number of children living on the streets, with 18.5 million out-of-school children reported nationally.
Authorities aim to provide psychological support and vocational training while addressing previous challenges of children returning to street life.