The National Agency for Food and Drug Administration and Control, NAFDAC has sealed four unregistered bakeries in Port Harcourt.
The Agency in a statement said the bakeries were operating without registered licenses.
The bakeries include, Divine Freedom Bread, He Reigns Bakery, Lord Abundant Bakery and Heroes Bakery.
The Agency warned that defaulters of its regulations risk prosecution and possible jail term when convicted by a law court.