A 1-month-old baby girl has died after she was found not breathing in her Brooklyn home Sunday morning, police sources said.

Daniela Juste was found unconscious and unresponsive at 590 Ocean Avenue in Flatbush–Ditmas Park around 5:30 a.m., police said.

The mother called 911, and when police arrived she was performing CPR.

The baby was taken to Kings County Hospital with injuries that initially appeared to be the result of child abuse, but her death is no longer considered suspicious, police sources said. She was pronounced dead at the hospital.

The investigation remains ongoing.