Bobbi Kristina Brown and Nick Gordon in 2012 
FREDERIC J. BROWN/AFP/GettyImages

There has been no official word on Bobbi Kristina Brown's condition, but sources have told USA Today that the daughter of Bobby Brown and the late Whitney Houston has had her breathing tube removed in an attempt to prevent infection.

According to the news site, Brown, 21, has been in a medically induced coma since she was found facedown and unconscious in a bathtub in her Roswell, Ga., townhouse Jan. 31. She remains in the medically induced coma at Emory University Hospital in Atlanta but is now breathing through a hole in her throat, according to CNN.

USA Today noted that removing the breathing tube does not indicate that the family plans to remove her from life support, and added that her status upon removing the tube remained unchanged.

"This is a normal procedure, done after a certain amount of time, to prevent infections," a family source told USA Today.

CNN's chief medical correspondent, Dr. Sanjay Gupta, noted that the procedure lowers the risk of infection and is standard for someone in a medically induced coma for longer than a few days.

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A family source told CNN that doctors are trying to bring Brown out of the coma slowly, but added that the extent of Brown's injuries is still unknown.

It was recently reported by several news sites that police are treating Brown's case as a criminal investigation.

Read more at CNN and USA Today.