Oscar-winning actor Philip Seymour Hoffman was found dead Sunday in his New York City apartment, law enforcement officials confirmed to NBC News.

A concerned friend found Hoffman in the actor's bathroom, fully clothed. When police arrived, they found Hoffman still had a syringe in his arm. Glassine bags believed to contain heroin were also found.

Hoffman, 46, won the Academy Award for best actor for 2005's "Capote," and was most recently seen in the "Hunger Games" sequel, "Catching Fire." He was nominated for Oscars three other times, including for 2012's "The Master."