MJ's post-mortem reports kept under wraps

London (ANI): Coroner's investigators have completed post-mortem tests on Michael Jackson but the results are being kept under wraps, authorities said.

Police officials probing into the King of Pop"s death requested that facts about what killed Jackson remain under a security hold while detectives investigate the events leading up to the pop icon's death, the Los Angeles County coroner's office said.

Neither the coroner's office nor the Police Department would indicate when the results might be made public, reports The BBC. Jackson died June 25 after his personal physician, Dr. Conrad Murray, found him not breathing in bed.

Meanwhile, a plan to release a film based on the singer's last rehearsals in Los Angeles for his series of concerts at the O2 arena in London has been approved by a Los Angeles judge.