Michael Jackson's body has been released to his family as police ruled out foul play in his death.

The King of Pop died from a suspected heart attack at his home on Friday aged 50.

The Los Angeles County coroner said tests, including toxicology, have been ordered and determining the cause of death could take several weeks.

Spokesman Craig Harvey said police had put a security hold on Jackson's case, limiting the amount of information that can be released.

He said a three-hour post-mortem examination had been held but the cause of death had been deferred.

He added: "It means that the medical examiner ordered additional testing such as toxicology and other studies."

The tests would take between four to six weeks, at which point he anticipated being able to close the case.

Jackson, who had a history of health problems, collapsed at his Los Angeles home around midday on Thursday.

No funeral details have been announced but it is believed that the family are considering a public service.