Police investigate deadly shooting at northwest Atlanta block party

ATLANTA - The Atlanta Police Department and Georgia Bureau of Investigation are investigating Sunday after a deadly shooting at a block party. 

Investigators said an officer fired their weapon during the incident but it's unclear if it was the officer or someone else who fired shots that killed a man and injured another. 

The investigation spanned multiple blocks of James Jackson Parkway near Hamilton E. Holmes Drive in northwest Atlanta. 

Atlanta police said hundreds — up to possibly 1,000 — people were attending a "neighborhood reunion." Officers were already on-scene handling the event.  

Gunfire between at least two people broke out at around 1 a.m., APD said. Atlanta police said an officer working during the party fired their weapon while others at the block party fired shots at the same time. 

The GBI said an officer encountered two men with guns and fired shots. 

The GBI said 38-year-old Atlanta man Gabriel Parker died at the scene from gunshot injuries. A second man went to a local hospital with gunshot injuries. 

The officer was not injured. The injured victims underwent surgery. FOX 5 Atlanta is working to learn their condition.

Two handguns were located at the scene, Atlanta police said.

The GBI is considering the incident an officer-involved shooting and launched an investigation.

"There were several gunshots that rang out prior to the officer's discharge," Deputy Chief Timothy Peek said. 

Fulton County Medical Examiner’s Office will conduct an autopsy, according to the GBI. 

WATCH: FOX 5 Atlanta live news coverage

_____

Sign up for FOX 5 email alerts

Download the FOX 5 Atlanta app for breaking news and weather alerts.