The altercation broke out Saturday night at the Rocky Point Ale House on Broadway.
[Ads /]
Eyewitnesses at the scene say a fight started inside the bar and spilled out onto the street. A 911 caller reported a disturbance at the location.
Upon arrival, officers observed Michael Murphy, 42, of Rocky Point, suffering from a medical event.
Rocky Point Rescue transported Murphy to John T. Mather Memorial Hospital in Port Jefferson where he was pronounced dead at 11:24 p.m.
No arrests have been made as the investigation continues.