LOS ANGELES (CBSLA.com) — Officials Monday announced plans to perform an autopsy for Bobbi Kristina Brown.

According to the Fulton County Medical Examiner’s Office, authorities plan to figure out what exactly caused her death.

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On Sunday, 22-year-old Brown passed away at a hospice facility. A family statement revealed she was surrounded by family when she died.

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About six months ago, she was placed in a medically induced coma after she was found unresponsive in a bathtub at her Atlanta home on Jan. 31.

Officials explained it will be a difficult and challenging process due to the amount of time that has passed.

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Brown was the only daughter of the late Whitney Houston and singer Bobby Brown.