Michael Jackson's doctor told police that he gave the singer the powerful sedative Propofol just hours before his death, according to reports.
Dr Conrad Murray is said to have made the confession in an interview with police officials on June 27.
Celebrity website TMZ, which was the first to break the news of the singer's death, said “multiple law enforcement sources” had endorsed the report.
The website's claims come just hours after a law enforcement official told the Associated Press news agency that Dr Murray regularly gave Jackson Propofol to help him sleep.
Police believe Dr Murray last administered the drug to Jackson through an IV shortly after midnight on June 25, the official said.
The 50-year-old singer died just over 12 hours later at a Los Angeles medical hospital.
Propofol, which is commonly used to help induce a patient into unconsciousness before surgery, has become the focus of the police's investigation into Jackson's death.
The Los Angeles Coroner's office has deferred Jackson's cause of death pending the results of toxicology tests, which are expected shortly.
Michael Jackson - Memorial Service
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