Brittany Murphy’s autopsy began shortly after 10 am Monday PST, RadarOnline.com has learned.
The autopsy is expected to take approximately three hours.
Sources close to the situation told RadarOnline.com that there were no immediate clues as to what caused the death of the 32-year-old actress.
Murphy collapsed and died suddenly on Sunday.
Her family has said that she was ill with flu-like symptoms for days.
A cause of death may not be known until toxicology tests are completed and that could take weeks. Meanwhile, LAPD has an open investigation into the death and is focused on a possible overdose, which includes drug interactions, prescription drugs legally obtained and other scenarios.