Police responding to a ShotSpotter call on Raymond Avenue in Roosevelt late Thursday found shell casings in front of two houses -- and two parked cars that had been hit.

No one was injured in the incident. Nassau County police said a witness reported seeing a man drive off in "an older model" gray pick-up truck.

The incident occurred just after 10 p.m., police said.

The shots activated ShotSpotter, the county's gunfire detection system, which is intended to give police dispatchers precise gunshot locations.

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Police said arriving officers found four shotgun shells and two .40-caliber shell casings in front of two residences.

Police are asking anyone with information to call Crime Stoppers at 800-244-TIPS. All calls will remain confidential.