Philip Seymour Hoffman was found dead in his New York apartment today, according to the Wall Street Journal.
There have been unconfirmed reports from several American media outlets that his death was due to a drug overdose.
The actor was aged 46 and had been in an long-term relationship with costume designer Mimi O'Donnell, he is survived by their three children.
Celebrities across the world used Twitter to voice their sadness at the loss of such a fine actor.
