Despite hopes that she had fully woken from her coma, Whitney Houston's mother has revealed that Bobbi Kristina Brown has "irreversible brain damage".

According to Cissy Houston, doctors say there is still a strong possibility that Bobbi Kristina will never fully recover from the brain damage.

Houston said in a statement released to People: "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."

She added: "Meeting with the doctors and understanding that she can live in this condition for a lifetime truly saddens me. We can only trust in God for a miracle at this time. Keep us in your prayers."

The new revelation will come as a surprise as Bobbi Kristina's father Bobby Brown, claimed that she was "awake" and "watching" him. The New Edition singer said at a concert in Texas: "I can say today. Bobbi is awake. She's watching me."

The 22-year-old has remained in hospital since 31 January after she was found unconscious in a bathtub at the Roswell, Georgia home she once shared with her late mother.

Whitney died in similar circumstances on 11 February, 2012, when her body was also found in a bathtub at the Beverly Hilton Hotel in Los Angeles.

Following Brown's on-stage announcement about his daughter's condition, his attorney Christopher Brown said that Bobbi Kristina was in a "rehabilitation process".

He told CNN: "Doctors have indicated that she will have a long life. However, Bobbi Kristina is presently embarking on a rehabilitation process and the quality of her life will not be known for years to come."

The ongoing feud between the Houston and Brown families has not subsided over the last few months and The Inquistr recently claimed that Bobbi Kristina's aunt Pat Houston had previously urged her father to agree to turn off the life support machine.

A source told the publication: "Of course Bobby wants Krissy to wake up and return to her life. That's all he wants. But there doesn't seem to be a lot of hope and the Houston family is resigned to the fact that keeping Krissy on life support may not be the best option. They don't think what Bobby is doing is the best thing for [Kristina]."