Whitney Houston's Daughter on Ventilator

A senior producer at CNN has reported that Bobbi Kristina Brown, daughter of Whitney Houston, is on a ventilator and the status of her brain function is not known until sedatives can be safely reduced.

According to reports, Brown was found yesterday in a bath tub unconscious and not breathing.

From CNN:

Brown "was not breathing" when a man identified as her husband found her Saturday morning inside her townhouse in the Atlanta suburb of Roswell, Georgia.

He called 911 and performed CPR until public safety officers arrived and took over, said police spokeswoman Lisa Holland.

The spokeswoman said when Brown was found, she was "unresponsive, meaning not breathing, no heartbeat."

In scanner traffic, emergency services could be heard describing an "ECHO-level response" -- urgent and life threatening -- with "possible cardiac arrest."

"Twenty-one-year-old female in the bathtub, facedown. PD's (police department's) en route."

Brown was taken to a local hospital, where "she is still alive and breathing. Other than that, I don't know her condition," Holland said Saturday.

Nobody knows what caused Brown's unresponsiveness, Holland said, but police consider it a medical incident at this time. She said investigators had found nothing to indicate it was drug- or alcohol-related.