NEW YORK, Ny. (ABC) -- UPDATE -- Philip Seymour Hoffman was found with five empty heroin bags, as well as many as 65 more bags that were still unused, police told ABC News.
Police investigating the Hoffman's death, apparently from a drug overdose, had earlier said they found 50 bags of the narcotic, but later sharply increased that figure. They also found used syringes, including one needle that was sticking out of Hoffman's arm when his body was discovered Sunday in his Greenwich Village apartment.
Detectives are using the stamps on the bags and checking with nearby jurisdictions to track the origins of the heroin. They are also trying to determine the purity of the heroin and whether there were any additives. They said that so it does not appear that Hoffman had the heroin-fentanyl combination that has been linked to deaths throughout the Northeast.
Investigators are also looking into the possibility that Hoffman's May detox stint would have affected his tolerance for the drug.
Hoffman, 46, was found unconscious at around 11:15 a.m. Sunday on the bathroom floor of his apartment by friend and screenwriter David Bar Katz, who called 911. Hoffman was pronounced dead at the scene.
He was supposed to pick up his three children Sunday, but never showed.
He was last seen at 8 p.m. Saturday night. Broadway theaters will dim their marquees for one minute at 7:45 p.m. Wednesday in Hoffman's memory.
46-year-old actor Philip Seymour Hoffman was found dead this morning in New York.
Hoffman was found in the bathroom of his Manhattan apartment at 35 Bethune St. in the West Village neighborhood of Manhattan this morning, according to the New York Police Department, which is investigating.
The cause of death has not yet been determined, but a law enforcement official tells ABC News heroin was found at the scene and a needle was sticking out of Hoffman's arm.
Hoffman won the Academy Award for Best Actor for his performance in Capote.
He was also nominated for three Best Supporting Actors including The Master, Doubt and Charlie Wilson's War.
There will be more information as it becomes available.