Bobbi Kristina Brown's father and aunt have been named as her co-guardians.

The 22-year-old TV personality was found unresponsive in a bathtub in her home in Georgia more than three months ago, and the decision taken by a court in the US state means her father Bobby Brown and her aunt Pat Houston are responsible for decisions relating to Bobbi's medical care from now onwards.

The duo released a joint statement which read: ''We are delighted to inform the public that the court has appointed Bobby Brown and Pat Houston as co-guardians of Bobbi Kristina Brown ('Krissi')

''Both Mr. Brown and Ms. Houston are jointly responsible for decisions related to Krissi's care and medical needs.

''Both parties are delighted with the court's decision and are working harmoniously to ensure Krissi receives the best possible medical care.''

Late last month, Cissy Houston - the mother of the young star's late mother Whitney Houston - revealed Bobbi has suffered ''irreversible brain damage''.

In a statement, she explained: ''I have just returned from visiting my granddaughter Bobbi Kristina in the hospital and while she is no longer in a medically induced coma she has a tracheotomy and according to the doctors she has global and irreversible brain damage and remains unresponsive.''