Philip Seymour Hoffman Dead: Cause of Death Possible Drug Overdose, Survived By Partner Mimi O'Donnell and 3 Children

Hollywood actor Philip Seymour Hoffman has been found dead Sunday in his New York City apartment, a law-enforcement official has confirmed. The award-winning actor was found in his apartment in Manhattan with the official cause of death not yet determined, although initial reports are claiming an apparent drug overdose is the cause.

The Office of the Chief Medical Examiner has been commissioned to determine the exact cause of death, and the New York Police Department is investigating the circumstances surrounding his sudden death.

A police official has said that Hoffman, who was only 46-years-old, was found dead at his apartment at 35 Bethune St. in the West Village neighborhood of Manhattan.

Hoffman featured in the recent Hunger Games film alongside Jennifer Lawrence, and also won the Academy Award for Best Actor for the 2005 film, "Capote." He received three Academy Award nominations as Best Supporting Actor, and also received three Tony Award nominations for his work in the theater.

Hoffman has admitted to his struggle with drug addiction in the past, and in just 2013 he checked himself into rehab to tackle reported heroin abuse.

Hoffman began his acting career in 1991, and is known for appearing in such films as Scent of a Woman (1992), Twister (1996), Boogie Nights (1997), The Big Lebowski (1998), Magnolia (1999), The Talented Mr. Ripley (1999), Almost Famous (2000), Capote (2005), The Savages (2007), Moneyball (2011) and The Hunger Games: Catching Fire (2013). He was also set to star in The Hunger Games: Mockingjay – Part 1 (in post-production), and Part 2 (filming).

He leaves behind his long-time partner, Mimi O'Donnell, and their three children son Cooper Alexander, 10, and daughters Tallulah, 7, and Willa, 5.