The Department of Buildings is investigating whether the site of Sunday's deadly fire in Brooklyn was illegally converted to add more apartments.
City law requires buildings with multiple apartments to have smoke detectors in hallways and other common areas.
But fire marshals say the apartment on Hancock Street in Bushwick where 12-year-old Simeon Frasier and his uncle Sean Monderson died had no smoke detectors.
Building Dept. Investigates Brooklyn Fire Site