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.
The Web site TMZ has streaming audio of the call: http://www.aolcdn.com/tmz_audio/062609_michael_2.mp3