Doctors treating Bobbi Kristina Brown hold little hope for her survival

Washington: Doctors, who are treating Whitney Houston's daughter Bobbi Kristina Brown, has said that there is little they can do for her.

A source told Fox News that it is now a matter of when the family wants to let go and accept that Kristina is pretty much not going to make it.

The source added that the doctors have left it up to the family as to how long they want to keep the 21-year-old alive.

Earlier reports emerged that the situation involving the daughter of Houston and Bobby Brown was particularly weak and her brain function was "alarming low" after being placed in a medically-induced coma.

Kristina was found unconscious wither face down in the bathtub at her home in Atlanta.