Whitney Houston died from prescription drug, alcohol combination, TMZ reports

According to reports from TMZ , Whitney Houston's family was informed by L.A. County Coroner officials that she did not die from drowning, but rather from a combination of Xanax and other prescription drugs mixed with alcohol.

Beverly Hills police said Monday afternoon that Houston was under water and apparently unconscious when she was found in the hotel bathtub.

TMZ reports family sources were informed there was not enough water in Houston's lungs to lead to the conclusion that she drowned.

Sources also told TMZ that it was actually Whitney's aunt, Mary Jones, who discovered the singer's body in the bathtub.

Lt. Mark Rosen said 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.

To read the full report from TMZ click here . (For mobile users go to http://www.tmz.com/2012/02/13/whitney-houston-cause-of-death-prescription-drugs-drowning-atlanta/ )