A squad of officers armed with a search warrant swooped on the medic's work premises in Houston, Texas, four weeks after Jackson's sudden death last month.
A fleet of vehicles carrying more than 20 officials from the Drug Enforcement Administration arrived outside the Armstrong Medical Clinic shortly before 11 a.m. local time. Two Los Angeles police officers and several local cops also joined in the raid.
They were reportedly set to seize all documents relating to Murray's treatment of Jackson, including medical notes, details of any drugs he was taking, and records of prescriptions Murray handed out to the star.
Several members of Jackson's family have urged officials to question Murray in recent weeks, amid growing claims that there was "foul play" involved in the "Thriller" hitmaker's death.
Murray was with Jackson when he went into cardiac arrest at his rented home in Los Angeles on June 25 and performed CPR on the star before emergency crews arrived.
As WENN went to press, it was unknown whether Murray was present during Wednesday's raid.
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