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(Radio.com) The county sheriff investigating Prince's death has enlisted the Drug Enforcement Administration for help, federal law enforcement officials have confirmed.

Following rampant rumors about Prince's liberal use of the painkiller Percocet, officials say prescription painkillers were found in his possession when he died and in his house in Minneapolis, though drugs have not been cited as the official cause of death. An autopsy was conducted, but the medical examiner said it would take weeks before the results would be disclosed.

The DEA's role will be to determine where the medications came from and what prescriptions Prince obtained, officials say. After a law enforcement official told CBS News that prescription drugs were found in Prince's possession at the time of his death, a source revealed that Prince began taking Percocet in 2006 when he first suffered hip pain from years of leaping around onstage. The source added that Prince has also suffered ankle and hip problems for years. The music legend had hip replacement surgery in 2010. Read more here.

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