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Authorities are working to determine what caused the death of Oscar-winning actor Philip Seymour Hoffman, who is believed to have suffered an accidental drug overdose.
An autopsy began Monday, but results weren't expected until at least Tuesday, the New York City medical examiner's office said.
Hoffman, 46, was found dead Sunday in his Greenwich Village apartment with what law enforcement officials said was a syringe in his arm.
The two officials told The Associated Press that glassine envelopes containing what was believed to be heroin were also found with Hoffman. Those items are being tested.
The law enforcement officials, who spoke to The Associated Press on condition of anonymity because they are not authorized to speak about evidence found at the scene, said the cause of death was believed to be a drug overdose. Police will only say the investigation is continuing.
Hoffman spoke candidly over the years about past struggles with drug addiction. After 23 years sober, he admitted in interviews last year to falling off the wagon and developing a heroin problem that led to a stint in rehab.
The law enforcement officials said Hoffman's body was discovered in a bathroom at his apartment by a friend who made the 911 call and his assistant.
Late Sunday, crime-scene technicians carrying brown paper bags went in and out of Hoffman's building as officers held back a growing crowd of onlookers.
Hoffman's family called the news "tragic and sudden."
"We are devastated by the loss of our beloved Phil and appreciate the outpouring of love and support we have received from everyone," the family said in a statement.
Tributes also poured in from other actors for Hoffman, who won the Oscar for best actor in 2006 for his portrayal of writer Truman Capote in "Capote" and created a gallery of other vivid characters.
He is survived by his partner of 15 years, Mimi O'Donnell, and their three children.
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Investigators said they recovered approximately 70 glassine packets, as well as syringes and prescription medications, from the New York City apartment of actor Philip Seymour Hoffman. Some of the packets tested positive for heroin residue. Hoffman, who had struggled with addiction in the past, was found dead Sunday, February 2, 2014.
CBS VIDEO: Philip Seymour Hoffman’s apartment littered with evidence of drug abuse:
Associated Press Release
NEW YORK (AP) -- The family of Oscar-winning actor Philip Seymour Hoffman says his death is "a tragic and sudden loss."
The 46-year-old actor was found dead Sunday in his New York City apartment.
In a statement, the family said the "outpouring of love and support" was appreciated. They asked people to respect their privacy.
Hoffman made his career mostly as a character actor, and he was one of the most prolific in the business.
The stage-trained actor's rumpled naturalism made him one of the most admired performers of his generation. He was nominated for Academy Awards four times and won the Oscar for best actor in 2006 for his portrayal of writer Truman Capote in "Capote."
He leaves behind his partner of 15 years, Mimi O'Donnell, and their three children.
Associated Press Release
By: DEEPTI HAJELA
NEW YORK (AP) -- Police say Oscar-winning actor Philip Seymour Hoffman has been found dead in his New York City apartment. He was 46.
Hoffman was found dead Sunday afternoon in his Manhattan home. His cause of death wasn't officially determined.
Hoffman made his career mostly as a character actor. He was nominated for Oscars four times in all, winning in 2005 for "Capote."
One of his breakthrough roles came as a gay member of a porno film crew in "Boogie Nights." He often played comic, slightly off-kilter characters in movies like "The Big Lebowski" and "Almost Famous." More recently, he had a role in "Moneyball" as the grumpy manager of the Oakland Athletics