AS the medical examiner's office awaits toxicology tests to determine exactly what killed singer Whitney Houston, arrangements for a possible funeral in New Jersey are being made.

An Associated Press source says while details are still being ironed out, the family has raised the possibility of holding a wake and funeral at Newark's Prudential Center by week's end.

The 48-year-old was found unconscious in the bathtub of her room at the Beverly Hilton on Saturday.

An autopsy was done and toxicology tests are being conducted.

Officials say there were no signs of foul play or trauma to the singer's body.

Prescription drugs were reportedly found nearby, but officials will not comment on the reports.

Houston won her first Grammy in 1986.

Her biggest hit was her 1992 cover of Dolly Parton's "I Will Always Love You" from the movie "The Bodyguard" in which she made her big-screen debut. In later years, Houston was plagued by substance abuse and seemed to lose her signature voice.

Meantime, Houston's daughter, Bobbi Kristina, is out of the hospital.

The teenager was reportedly treated for stress and anxiety following her mother's death.

Her father, performer Bobby Brown issued a statement appealing for "Privacy, especially for his daughter" at this difficult time.

The teenager was in Los Angeles with her mother attending various pre-Grammy events.