MARIETTA, OK ― A Marietta mother is dead and now state agents have been called in to investigate. Marietta Police and the Oklahoma State Bureau of Investigation are trying to piece together a woman's final hours.

Investigators say emergency officials were called out to the home at on Bill Halstied Road late Friday morning for a report of a woman not breathing. There they found Keiona Hubbard, 31, laying on a couch in the living room. Hubbard was rushed to the hospital in Marietta before she was airlifted over to Lawton, where she later died.

The Oklahoma State Medical Examiner's Office says Hubbard died from a severe injury to the right side of her head, but they are still working to determine what caused that head trauma.

Marietta Police say there were no signs of forced entry into the home. They are asking anyone with any information about Hubbard’s death to please call their department at 580-276-9371.