Oscar-winning actor Philip Seymour Hoffman was found dead in his West Village apartment this morning after an apparent drug overdose. Law enforcement sources tell Gothamist that the 46-year-old actor was found in his residence at 35 Bethune Street shortly after 11 a.m.

Pervaiz Shallwani at the Wall Street Journal reports that Hoffman was found in the 4th floor bathroom of the Pickwick House by screenwriter David Katz, who called 911. The NYPD is currently investigating, and the Office of the Chief Medical Examiner will determine the cause of death.

The Daily News and the Post also quote law enforcement sources saying that the actor was found with a needle in his arm. Investigators say they believe Hoffman was shooting heroin. Drug overdose is the most common reason for accidental death in New York.

Hoffman reportedly entered rehab for narcotics abuse last year. He told 60 Minutes in 2006 that he had long struggled with drugs, and first entered rehab when he was 22, shortly after graduating from NYU.

Hoffman and his partner Mimi O'Donnell had a son and two daughters, 10-year-old Cooper, 6-year-old Tallulah, and 4-year-old Willa.

A reporter for LA Times tweeted a statement from the actor's family:

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.

Hoffman, who won best actor in 2006 for playing Truman Capote, was also about to begin a new series for Showtime in which he played an embattled ad executive, in a “blistering attack on our youth-obsessed culture and a darkly comic examination of what it means to matter. Or matter not.”