The final results of Michael Jackson's death have been completed but remain sealed while police continue their investigation.

Authorities have confirmed on Monday that results of the autopsy performed on Michael Jackson will remain sealed despite the fact that probe into the case has been completed.

According to the Los Angeles County coroner's office, police have asked for the cause and manner of Michael's death to remain sealed while detectives are still investigating the events leading to his death.

Officials with the U.S. Drug Enforcement Agency (DEA), which is assisting Los Angeles police in their investigation of the pop star's sudden death on June 25, said agents conducted a new raid at a business called Applied Pharmacy Services.

The cause of Michael Jackson's death remains questioned since he passed away after suffering from cardiac arrest back on June 25.

DEA spokesman Jose Martinez declined to say if the search was tied to Jackson's personal doctor, Conrad Murray, whose house and medical offices were raided last month in Houston and in Las Vegas.

California