Garfield shooting incident: Key moments from the shooting response ...

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PITTSBURGH (KDKA) -- After a six-plus hour standoff with law enforcement, Pittsburgh Public Safety said the gunman at the center of the "active shooting situation" in Pittsburgh's Garfield neighborhood is dead. 

According to Pittsburgh Public Safety, the shooting unfolded in the 4800 block of Broad Street and North Mathilda Street.

Public Safety posted on social media shortly after 11 a.m. urging people to avoid the area. The man was pronounced dead at 5:08 p.m., officials said.

The sheriff's office said the suspect turned violent and started shooting when deputies went to the address to serve an eviction notice. An attorney said the home involved was bought at a sheriff's sale and deputies were going to remove a man who was "basically squatting," knowing it could turn violent. 

It's believed that "hundreds of rounds" have been fired. 

Pittsburgh Police SWAT took over the scene and the investigation. Sources said the suspect previously shot down two police drones. 

The public is asked to avoid this area as it is being described as an "extremely active situation."

A sergeant with the Allegheny County Sheriff's Office suffered a minor injury while trying to avoid gunfire. He wasn't shot and he is OK, the sheriff's office said.