Suffolk police investigate after man dies in custody in Wyandanch

Suffolk County Homicide Squad detectives and members of the department's Internal Affairs Bureau are investigating the death of a man in police custody on Thursday.

Police came upon the man in Wyandanch, where they said they found him half naked and possibly intoxicated, banging on the window of a business.

They had received a 911 call for a man lying on the ground on Merritt Avenue at 10:21 a.m., authorities said. The man was naked from the waist down, banging on the business window and acting irrational and agitated when police arrived on the scene, they said.

Officers subdued and handcuffed the man, police said, adding that he then became unresponsive. Officers and emergency rescue personnel performed CPR and took the man to Good Samaritan University Hospital in West Islip, where he was pronounced dead, police said.

The New York State Attorney General's Office, which investigates all civilian deaths involving police, was notified of the incident and responded to the scene.