Matthew Perry’s initial autopsy results are inconclusive, pending a toxicology report, authorities said Sunday.

The cause of death has been “deferred” and further investigation has been requested before a determination will be made, according to a report released by the L.A. County Medical Examiner.

Though an official conclusion likely won’t be released for several weeks, the medical examiner’s office did say that the body was ready to be released to the family.

The “Friends” star died Saturday after an apparent drowning in his jacuzzi at his Pacific Palisades home. He was 54 years old.

A 911 call came in at 4:07 p.m. local time, according to a law enforcement source. The call was treated as a water rescue.

A spokesperson for the Los Angeles Fire Department, Brian Humphrey, said first responders went to a home in Pacific Palisades Saturday night based on a 911 call responding to a “water emergency.”

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No one was taken to the hospital from the scene, Humphrey said.

The LAPD’s Robbery-Homicide Division was also on the scene, Humphrey said.

The sources told NBC News Saturday night that the case was a death investigation and that there were no signs of foul play.

Perry

This is a developing story. Please check back for updates.