UPDATE

SOUTH HANOVER TOWNSHIP -- One man is dead in a police officer-involved shooting following what state police described as an "altercation" between the man and the officer.

State police are investigating the incident that began when a Hummelstown police officer attempted to make a traffic stop at about 4 p.m. on Monday in the borough, said Trooper Robert Hicks, state police spokesman, at the scene.

When asked whether the man showed any type of aggression toward the officer, Hicks said it was too early to know and investigators "don't have all of those details right now."

Hicks estimated the man, who has not been identified and only described as a "white male subject," to be in his 50s. Hicks said he did not know if the man's family had been identified and if anyone else lived in the home.

The officer was not injured in the incident.

Hicks did not identify the officer involved in the incident, but said the officer would most likely be placed on administrative leave.

"Generally that's normal protocol for any police department," Hicks said.

Al Amico, 51, watched the incident unfold once the pursuit entered the area, but said the shooting seemed to be obscured from view by trees and the home. Like others gathered near the scene, Amico said he heard two shots fired.

Hicks did not specify if any area residents were eyewitnesses to the fired shots or how many shots were fired by the officer.

Troopers were expected to remain on Grandview Road investigating, conducting interviews and reconstructing the incident scene for a few more hours Monday evening.

The Dauphin County District Attorney's Office has been notified of the incident and will work with state police moving forward with the investigation, according to Hicks.

"It's going to take some time before all of this is figured out, probably weeks to months," Hicks said.

Some local residents, like Carol Oliveira, appeared shaken by the incident as they tried to sort out what led to the sound of gunshots so close to their homes.

No account of the events left it out.

"You know how people always say, 'This is a quiet neighborhood?' Well, this was truly a quiet neighborhood," Oliveira said.

This post has been updated with additional information.