Whitney Houston cause of death could take weeks; TMZ says she took booze and pills before she died

BEVERLY HILLS, Calif. (AP) -- Beverly Hills police say Whitney Houston was under water and apparently unconscious when she was found in a hotel bathtub.

   Lt. Mark Rosen said Monday that the singer was found Saturday by a member of her personal staff at approximately 3:30 pm. Rosen says Houston was pulled from the tub by members of her staff, and hotel security was promptly notified.

   Rosen says further details of Houston's death are not being released to preserve the integrity of the investigation.

   The coroner's office says toxicology testing is continuing.

   However TMZ is reporting that Houston drank alcoholic beverages shortly before she died, and it claims the mix of prescription drugs and booze could have caused her death. The website also posted photos of what it said were pictures from the room where she died.