By Matt Petrillo

TRENTON, N.J. (CBS) — A man has been critically injured after officials say he was shot in the head during a police-involved shooting. The incident happened around 4 p.m. on the 1900 block of Calhoun Street in Trenton on Sunday.

The Mercer County Prosecutor’s Office says the suspect was armed and was shot by an officer during an encounter.

Officials have yet to say what the encounter was or if the suspect fired at any officers.

Neighbors saw police officers fire several shots toward a suspect on the 1900 block of Calhoun Street around 4 p.m. on Sunday. Bullet holes were visible in the window of a silver car at the scene.

“Bang, bang! They had to dump like seven shots,” witness James Brown said.

Drone video shows a large crime scene by a row of homes and near a park called the Capitol City Sports Complex.

Police were initially following the man, who neighbors say was behind the wheel of the silver car. Officers were yelling at him to stop and get out, but the suspect did not comply with the officers’ orders.

“They were chasing him and they ran him into that area and gunshots erupted,” Brown said.

The suspect was shot in his head and collapsed before being rushed to a nearby hospital. He was placed in critical condition.

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Police have not yet explained what led up to the police-involved shooting.

The New Jersey Attorney General’s Office has been notified, officials say.

Investigators say security cameras from nearby businesses captured part of the shooting. Police are trying to get that video to review it.

An investigation remains active and ongoing.