(CNN)Actor Michael K. Williams died from "acute intoxication by the combined effects of fentanyl, p-fluorofentanyl, heroin and cocaine," the New York City Medical Examiner's Officer has determined.
His decease was deemed to beryllium accidental successful nature, a spokesperson for the bureau said successful a connection connected Friday.
Williams was recovered dormant successful his New York City flat earlier this month.
In a 2017 interrogation with the New York Times, Williams addressed his struggles with substance abuse.
"Addiction doesn't spell away," helium said. "It's an mundane conflict for me, but I'm fighting."
Williams astir precocious appeared successful HBO's "Lovecraft Country" and the bid "F Is for Family."
He roseate to stardom for his nuanced and almighty show arsenic Omar Little successful "The Wire." He besides received accolades for his enactment connected "Boardwalk Empire," "Bessie" and "The Night Of."
Williams was adjacent slated to co-star successful Sony's George Foreman biopic from George Tillman Jr., who was acceptable to direct.
News of Williams' abrupt decease sparked an outpouring of tributes from loved ones, fans, and his friends successful entertainment, including astatine past week's Emmy Awards.
The ceremony's "In Memoriam" tribute ended with a punctuation from Williams: "The lone mode for maine to accidental convey you is by making definite that the instauration that I americium lasting connected is beardown capable to enactment the adjacent idiosyncratic that volition basal connected these 2 shoulders."
CNN's Sandra Gonzalez and Scottie Andrew contributed to this story.