Prince died of fentanyl overdose, autopsy report released

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Officials may now know what killed Prince.

Law enforcement official told

that tests show Prince died of an opioid overdose.

The official spoke with The AP on the condition of anonymity because he's not permitted to speak to the media,

.

fentanyl

also released the autopsy results.

The singer was found dead in his Paisley Park home in Chanhassen, Minnesota, in April.

He was 57.

His dead was a week after a private plane made an emergency landing in Illinois,

.

Officials said Prince was found unconscious on the plane and was given Narcan by first responders,

. Narcan is used in suspected opioid overdoses.

Prince had been cremated just days after his death.