Brittany Murphy's mother found her unconscious in the shower this morning and was in full cardiac arrest when paramedics arrived, according to reports.

The LA County Coroner's office will perform an autopsy to determine the cause of death. The LAPD says there is a "death investigation" involving the actress.

Murphy's rep has released this statement: "In this time of sadness, the family thanks you for your love and support. It is their wish that you respect their privacy."