Fire crews responded to the 8800 block of Tobias Avenue at 8:39 a.m. The flames were mostly confined to one unit at the two-story apartment, authorities said.
A 42-year-old woman was found dead inside the charred apartment. The victim has not yet been identified. Her 14-year-old son and two police officers who were assisting in evacuation were hospitalized in fair condition for smoke inhalation.
Thirty-nine firefighters responded to the blaze, which was knocked down in 14 minutes.
The cause of the fire is under investigation. Fire officials say there was no immediate evidence of a functional smoke alarm or fire sprinklers.