Four people are being questioned in connection with drugs found at actor Philip Seymour Hoffman's apartment, CNN reports. About 50 bags of heroin - some used, some unused - are among items that have reportedly been found in his New York apartment.
Gwyneth Paltrow has paid tribute to Philip Seymour Hoffman, who she starred alongside in The Talented Mr Ripley.
The Hollywood star posted a picture of herself with Jude Law and Hoffman who she called "a true genius".
Profile: Philip Seymour Hoffman dies aged 46
Read more: Tributes to Philip Seymour Hoffman
A variation 100 time more potent than heroin - laced with the painkiller Fentanyl - is causing a spike in deaths on the US East Coast.
Philip Seymour Hoffman joins a sad list of Hollywood stars whose lives were seemingly cut short by drugs, here is a look at other losses.
A look at the life and career of Philip Seymour Hoffman who has died from an "apparent drug overdose" aged 46.