The authorities removed prescription medications and two bags of "medical evidence" from Jackson's rented Holmby Hills home where the pop star died last Thursday, the Los Angeles Times reported quoting sources.

Investigators are also interviewing doctors who treated Jackson and prescribed him medication, the newspaper said quoting Law unnamed law enforcement sources.

The role of prescription medicines in Jackson's sudden death remains unclear and his cause of death could only be determined by toxicology tests, which may take four to six weeks.

The preliminary autopsy reports have ruled out foul play in Jackson's death.

Jackson's dependency on prescription drugs has been confirmed by many of his former aides including his children's nanny, nurse and former manager.