UPDATE: Early this morning (Feb. 13) sources revealed to TMZ that L.A. County Coroner officials told Whitney's family that "the singer did not die from drowning, but rather from what appears to be a combination of Xanax and other prescription drugs mixed with alcohol."

LOS ANGELES (AP) - Coroner's officials say they will not release any information on Whitney Houston's autopsy at the request of police detectives investigating the singer's death.

Capt. John Kades says an autopsy on Houston was schedule Sunday but that a security hold prevents him from releasing any details on its status or whether any probable cause of death has been established.

Beverly Hills Police Lt. Mark Rosen said Sunday that his agency may release more details about Houston's death Saturday afternoon on Monday, but it will depend on whether detectives feel comfortable releasing any information.

A member of Houston's entourage found the 48-year-old singer unresponsive in her hotel room at the Beverly Hilton Hotel Saturday, just hours before she was supposed to appear at a pre-Grammy gala.

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Watch 'Singing Superstar Whitney Houston Dead'

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Recording Star Whitney Houston Dead

Watch Whitney Houston Perform 'Jesus Loves Me' With Kelly Price


Watch Whitney Houston's 'I Wanna Dance With Somebody' Video

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