A T-shirt seen at a candlelight vigil for pop music icon Prince on April 21, 2016, at Leimert Park in Los Angeles.
ROBYN BECK/AFP/Getty Images

Police served a search warrant on the local drugstore where the late performer Prince was seen several times in the days before his death, reports the New York Daily News.

The surprise warrant was reportedly served Thursday at a Walgreens near Paisley Park. 

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Sources say that authorities are looking for doctors who may have prescribed medications, and pharmacies that may have filled Prince’s prescriptions. TMZ reports that authorities are also interested in aliases the singer might have used. 

When people abuse prescription meds, they commonly use various doctors and pharmacies to procure the controlled substances so that the prescriptions are not flagged.

Unidentified family members allegedly told TMZ that Prince had multiple doctors writing him scrips, including a “personal friend.”

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According to the gossip site, Prince had a problem with the pain medication Percocet and nearly suffered a fatal overdose six days prior to his death on an airplane.

The News reports that the Prince investigation mirrors the forensic work that took place after Michael Jackson’s death, which led to an involuntary manslaughter conviction for Dr. Conrad Murray, the man who prescribed Jackson the meds that killed him.

Read more at the New York Daily News.