HORRIFYING STORY: "I killed my daughter," a Queens mother told a 911 operator, according to police sources.

Francis Cabello, 32, was charged with murder Thursday night in the death of her 5-year-old daughter, Fabiana, the NYPD said.

Police found the girl unconscious and unresponsive just before 7 p.m. Wednesday in a bedroom of a two-story home on 110th St. in South Richmond Hill. She was bleeding from her nose and mouth, police confirmed.

When officers arrived, they found the mother downstairs, and she told them, "She's upstairs, not breathing." EMS took the girl to Jamaica Hospital Medical Center, where she was pronounced dead.

The medical examiner will determine the cause of death.

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