LISTEN to the 911 call on TMZ.com.
LOS ANGELES -- A 911 caller from Michael Jackson's home says he wasn't breathing or responding to efforts to revive him.
The Los Angeles Fire Department released the 911 call Friday.
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.
Los Angeles County coroner's Lt. Brian Elias says an autopsy began shortly after 9 a.m. Friday and could take three to four hours.
Additional laboratory tests, including toxicology tests, are likely and those results wouldn't be known for several weeks.
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