LOS ANGELES (AP) - Los Angeles County coroner's spokesman Craig Harvey says determining the cause of Michael Jackson's death will require further neuropathology and pulmonary tests that will take four to six weeks.
Harvey says there were no signs of foul play or trauma to the body during the three-hour autopsy. He also says Jackson was taking some unspecified prescription medications.
The spokesman says Assistant Chief Coroner Ed Winter is with Jackson's family.
Harvey says the police department has requested a security hold on the investigation which limits how much the coroner's office can say about the case. He says the death became a coroner's case because there was no doctor to sign the death certificate.
Harvey says the body will be released once the family selects a mortuary.
Also Friday, the Los Angeles Fire Department released Thursday's 911 call when a caller from Jackson's home can be heard saying Jackson wasn't breathing or responding to efforts to revive him.
The caller reported that Jackson was on a bed, he wasn't breathing and wasn't responding to CPR.
The unidentified caller said Jackson only was with his personal doctor at the time.
Jackson was pronounced dead later Thursday at UCLA Medical Center.
The call's release came as a newspaper reports the doctor whose car was towed from Michael Jackson's house is a cardiologist who practices in California, Nevada and Texas.
A woman who answered the phone Friday at Dr. Conrad C. Murray's clinic in Houston confirmed to The Associated Press that Murray was Jackson's cardiologist. The woman, who refused to give her name, would not confirm the Los Angeles Times report that Murray was performing CPR on Jackson when paramedics arrived at the entertainer's home Thursday.
The Texas State Board of Medical Examiners Web site shows no complaints filed against Murray in the four years he's been a licensed cardiologist in Texas.
Los Angeles police say they want to speak to the doctor but stressed he was not under criminal investigation.
A Los Angeles police spokeswoman says: "We have not been able to interview the doctor yet. His car was impounded because it may contain medications or other evidence that may assist the coroner in determining the cause of death."
Meantime Jackson's death has led to his music once again becoming a big seller.
At a Borders store in midtown Manhattan, a shopper was wishing he had bought the Michael Jackson video compilation when he saw it there a few days ago.
Today, it was sold out. And it's a similar story for Michael Jackson music and videos everywhere.
Amazon.com quickly sold out all of its Michael Jackson CDs, plus those by the Jackson 5, as word spread about Jackson's death.
Barnes and Noble is also scrambling to restock its Jackson CDs and DVDs.
As for the online iTunes store, Apple isn't saying how much demand there is for Jackson's music. But before yesterday, none of Jackson's albums was in the iTunes list of top sellers. After the news of his death broke, "Thriller" quickly reached number one. Today, nine of the top 10 albums are Jackson's.
