BOBBY CHRISTINA BROWN FOUND UNCONSCIOUS IN BATHTUB AND MAYBE "BRAIN DEAD"!

Whitney Houston and Bobby Brown's daughter was found unconscious in a bathtub in her home today and and taken to a hospital.

TMZ reports

Bobbi Kristina Brown's husband Nick Gordon and a friend found her in the tub ... according to police in Roswell, GA. We're told her husband and friend immediately started CPR on her ... until police and paramedics arrived.

We're told police took over life-saving measures on the scene -- and then she was taken by ambulance to a hospital.

Doctors have now stabilized her breathing, and we're told she is in ICU.

Still unclear why Bobbi fell unconscious. We're told a friend made the call to 911 from Bobbi's house.

She was later pronouned "brain dead" as a lot of water got to her brain before she was discovered...
 She was rushed to the hospital where TMZ later reported that she was in a medically induced coma for swelling of the brain. Now MTO is reporting that she's brain dead

MediaTakeOut.com just exclusively spoke to a hospital worker at North Fulton Hospital, where Bobbi is staying. We're told that Bobbi Kristina is "brain dead". The worker, who asked to remain anonymous said, "She lost oxygen to her brain for too long - she's not going to be able to recover." We asked if the worker was sure about Bobbi's condition, and they replied, "Yes, very sure."

We're also told that her father Bobby Brown, and family friends including Tyler Perry are at her bedside, praying for a miracle. Let's all say a special prayer for Bobbi tonight.

The circumstances are especially eerie -- Whitney died in a bathtub at the Beverly Hilton on Februrary.