Bobbi Kristina Brown died of combination of drugs, drowning

Late singer Whitney Houston's daughter Bobbi Kristina Brown died due to a combination of drugs and drowning, revealed her autopsy report which was unsealed on Friday, eight months after her tragic demise.

Bobbi Kristina passed away in July last year after months of being in a coma. Her partner Nick Gordon found her unconscious in her bathtub at their US home in Roswell, Georgia.

The reality TV personality, singer and actress died from a combination of drowning and drug intoxication, the Fulton County Medical Examiner's office revealed in a statement on Friday, reports people.com.

Released on what would have been Bobbi Kristina 23rd birthday, the statement sheds light on her condition when she was found unresponsive in her bathtub on January 21, 2015.

In the full autopsy release, the medical examiner's office in Atlanta said that marijuana and alcohol were involved in the death, as well as sedative medications and drugs were used to treat anxiety.

Previously, officials said her autopsy showed "no significant injuries" at the time of her "non-natural death," but a court order kept the information sealed.