Philip Seymour Hoffman Found Dead

Oscar-winning actor Philip Seymour Hoffman has been found dead in his New York City apartment, a police source confirms.

The actor was found on Sunday afternoon in his West Village residence. He was 46. The police source tells ET that heroin was found at the scene. Hoffman's body was removed from his building around 6 p.m. Eastern.

RELATED PICS: Gone Too Soon- 2013 Celebrity Deaths

According to The Wall Street Journal, "New York Police Department is investigating, and the Office of the Chief Medical Examiner to determine exact cause of death."

Hoffman's family released the following statement: "We are devastated by the loss of our beloved Phil and appreciate the outpouring of love and support we have received from everyone. This is a tragic and sudden loss and we ask that you respect our privacy during this time of grieving. Please keep Phil in your thoughts and prayers."

Lionsgate responded to The Hunger Games: Catching Fire star's death, saying in a statement: "Philip Seymour Hoffman was a singular talent and one of the most gifted actors of our generation. We're very fortunate that he graced our Hunger Games family. Losing him in his prime is a tragedy, and we send our deepest condolences to Philip's family."

Back in May 2013, it was revealed that Hoffman had admitted himself into a detox facility for a substance abuse problem that included both prescription pills and heroin. A source confirmed to ET back then that Hoffman struggled with drug abuse 23 years ago, but after relapsing a year prior, checked himself into a 10-day detox program on the East Coast. The actor claimed that his heroin use only lasted a week.

Hoffman is perhaps best known for his role as Truman Capote in the 2005 film Capote. The part earned him an Academy Award. He also starred in P.T. Anderson's 2012 highly acclaimed film The Master.