MINNEAPOLIS, May 10 (UPI) -- Minnesota investigators and agents of the U.S. Drug Enforcement Administration conducted another search at Prince's Minneapolis home late Tuesday, news media reported.
More than a dozen vehicles descended on the singer's Paisley Park property, in the suburb of Chanhassen, on Tuesday evening. The sheriff's office said the detectives were "revisiting the scene at Paisley Park," CBS Minnesota reported.
It wasn't revealed whether authorities might have been searching for something specific, or are possibly just being thorough in their investigation into Prince's sudden death.
The DEA was asked to join the investigation last month.
The singer was found unresponsive inside an elevator at the property on April 21. An autopsy concluded that there were no obvious signs of foul play or suicide. Toxicology tests, though, are still awaited.
Numerous media in recent weeks have cited sources close to Prince in reporting the death was possibly drug-related. The Los Angeles Times reported Tuesday that the 57-year-old entertainer had agreed to an intervention not long before his death.
The Times report said a Minneapolis doctor had seen Prince on April 20, the day before he died, and was at Paisley Park the next morning to deliver test results.
Another angle supporting the drug theory is a reported stopover in Illinois on April 15, while Prince's jet was en route from Atlanta to Minneapolis -- which reportedly involved a medical emergency and an unresponsive person.