The Associated Press is reporting that a law enforcement official has told them that Prince died of an opioid overdose.

The official is close to the investigation and spoke only on the condition of anonymity because he was not authorized to speak to the media.

The 57-year-old singer was found dead in his Chanhassen home on April 21. Investigators have been looking into a possible overdose and whether a doctor was prescribing drugs. An autopsy was performed on April 22.

Watch for more on this developing story.

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