The Los Angeles County coroner's office said the release of Michael Jackson's autopsy results will take at least another two weeks to be released.

The office previously expected to wrap up the report late this week or early next week.

There's a lot that goes into being able to prove whether someone was murdered or not, and that takes a long investigation, LAPD Commander Patrick Gannon told People, the entertainment site reported. The death of Michael Jackson is considered undetermined at this point as to whether it was a homicide or accidental or some other cause of death.

The toxicology report is expected to include which drugs were found in Jackson's system when he died and whether they played a role in his sudden death on June 25.