BEVERLY HILLS, Calif. — Whitney Houston was underwater and apparently unconscious when she was pulled from a Beverly Hills hotel bathtub, and she had prescription drugs in her room, authorities said Monday.

Two days after her death, Houston’s body was taken to a small, Los Angeles-area airport and flown to New Jersey, where her family was making arrangements for a funeral at the end of the week.

An autopsy was done Sunday, and authorities said there were no indications of foul play and no obvious signs of trauma on Houston’s body. It could be weeks, however, before the coroner’s office completes toxicology tests to establish her cause of death.

The 48-year-old singer had struggled for years with cocaine, marijuana and pills, and her behavior had become erratic.

Houston was found Saturday at the Beverly Hilton Hotel by a member of her staff about 3:30 p.m.