“The Wire’’ actor Michael K. Williams was found dead of a suspected heroin overdose in his Brooklyn penthouse Monday afternoon, law-enforcement sources told The New York Post.

Williams was discovered unconscious in the dining room of his luxury Williamsburg pad with what appeared to be heroin on the kitchen table, sources said. 

His nephew found him around 2 p.m., and the acclaimed TV star was officially pronounced dead at 2:12 p.m., source said — adding that it appeared Williams had fatally OD’d.

“I found the body,” said a weeping man at the scene, talking into his cell phone.

Tears streamed down his face, and the man shook as he sat alone at a table outside the building, barely able to get the words out. 

The city Medical Examiner’s Office was at the building, and eight NYPD cops, including at least two supervisors, were outside.

“No foul play indicated,” a police source said. “No forced entry, the apartment was in order.”

The Flatbush native — currently a 2021 Emmy Award nominee as best supporting actor for “Lovecraft Country” — was famous for his role as Omar Little in the gritty TV series “The Wire’’ and as Chalky White in “Boardwalk Empire.’’

Williams had been open about his personal struggles with drugs through the years, including during the filming of “The Wire,” saying that getting so into the role of Little, who robs drug dealers, affected him in real life.