Oscar winning actor Philip Seymour Hoffman has died at the age of 46.

The New York Post is reporting, Hoffman was found in his Manhattan apartment this morning with a hypodermic needle in his arm.

Police are still investigating but heroin was found in the apartment.

Hoffman has had problems with drugs in the past. He'd even checked into rehab last year after a relapse.

Fans are expressing their shock and sorrow over this great loss on social media.

Hoffman was in the middle of shooting 'The Hunger Games: Mockingjay – Part 2.' He won a Best Actor Oscar for the 2005 film 'Capote.'

Hoffman has starred in several movies and is well know in Hollywood.

Donald Sutherland & Philip Seymour Hoffman 'Hunger Games: Catching Fire' 2013

Frazer Harrison/Getty Images

Brad Pitt & Philip Seymour Hoffman 'Moneyball' 2011

Jason Merritt/Getty Images

George Clooney & Philip Seymour Hoffman 'The Ides of March' 2011

Gareth Cattermole/Getty Images For The BFI

Willem Dafoe & Philip Seymour Hoffman 2014

Neilson Barnard/Getty Images for Nintendo

Russell Crowe & Philip Seymour Hoffman 2010

Dimitrios Kambouris/Getty Images