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Philip Seymour Hoffman’s Cause of Death Revealed: Actor Died of Acute Mixed Drug Intoxication, Medical Examiner Says

Philip Seymour Hoffman at the 2013 Vanity Fair Oscar party on Feb. 24
Philip Seymour Hoffman's cause of death has been revealed as "accidental acute mixed drug intoxication," the medical examiner announced Feb. 28

Philip Seymour Hoffman's official cause of death has been established nearly four weeks after his death. The late actor, 46 when he passed away earlier this month, died of "accidental acute mixed drug intoxication, including heroin, cocaine, benzodiazepines, and amphetamine," the New York City Office of the Chief Medical Examiner confirmed to Us Weekly on Friday, Feb. 28.

Related: PHOTOS: Philip Seymour Hoffman's greatest film roles

As previously reported, Hoffman was found dead with a hypodermic needle in his arm on Feb. 2. Police said at the time that as many as 65 bags of unused heroin were found in his West Village apartment; there were also used syringes, prescription drugs, and drug paraphernalia.

Related: PHOTOS: Stars gone too soon

An initial autopsy on the Oscar winner's body just days after his death produced inconclusive results. At the time, a spokesperson for the medical examiner's office said that cause of death was "pending further studies," including a full toxicology report.

Related: PHOTOS: Celebrity rehab centers

Hoffman's history with addiction was well-known. In May 2013, he entered rehab for a 10-day stint after relapsing following more than 23 years of sobriety.

He is survived by his three children, son Cooper and daughters Tallulah and Willa, with partner Mimi O'Donnell.

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