By Lewis Bazley.
Los Angeles police have not ruled out murder in the investigation into the death of Michael Jackson, the department head has admitted.
The Thriller star died two weeks ago after suffering a cardiac arrest, with his father Joe suspecting "foul play" was involved in the singer's passing.
According to LA police chief William Bratton, police are awaiting the results of toxicology examinations before confirming whether Jackson's death will be treated as a criminal case.
"Are we dealing with a homicide or are we dealing with accidental overdose... I don't have that information," he told CNN.
"We are still awaiting corroboration from the coroner's office as to cause of death.
"That is going to be very dependent on the toxicology reports that are due to come back. And based on those, we will have an idea of what it is we are dealing [with]."
Police are investigating the late singer's use of prescription medication, with CNN claiming a confidential document stated Jackson was regularly consuming ten tablets of the sedative Xanax per night.
And according to the Los Angeles Times newspaper, the Billie Jean hitmaker's medical records have been subpoenaed from more than dozen doctors who treated him since 1993.
Meanwhile, Jackson's record label Epic have said they will not rush into releasing new material recorded by the singer before his death.
"We just want to pay our respects to Michael," said president Amanda Ghost. "We don't want to be seen to be jumping on any bandwagon associated with his death.
"The appetite is definitely there" for new material to hit the shelves, Ghost told BBC 6 Music.
"If we do release anything of unreleased material, it has to be fantastic and it can't damage in any way his legacy or his legend and I won't let that happen at Epic.
"I have no idea when it's coming out, but it will come out on Sony/Epic. We haven't made any decisions because we just want to be respectful for his memory and not be seen in any way as trying to cash in."