The NYPD says an officer was shot and killed Thursday night by a fellow police officer who reportedly lives on Long Island.

City police say Andrew Dunton, reportedly of Ridge, shot and killed 25-yaer-old officer Omar Edwards in Harlem. The NYPD says Edwards had just gotten off work when he saw someone breaking into his car. He began chasing that individual. Police Commissioner Raymond Kelly says Edwards was in plainclothes and had his gun drawn during the chase.

Police say a sergeant and two officers saw the chase taking place, prompting one of those officers to shoot Edwards.

Investigators are trying to determine whether any disciplinary or legal action will be taken against the officer who fired or whether Edwards followed proper procedure.

The officer who fired and two others involved were placed on administrative duty during the investigation. Police spokesman Paul Browne says it is too early to say whether anyone was at fault.

Rev. Al Sharpton is also calling for an investigation. The officer who opened fire is white, and Edwards is black.

AP wire reports contributed to this article.