A commercial vehicle was impounded after a pedestrian was killed Thursday morning in a suspected hit-and-run in Lake Success, Nassau County police said.

Police said in a Friday news release that the victim, a 74-year-old woman, was found on the sidewalk of Lakeville Road near Farm Lane at 10:45 a.m. Thursday. She "appeared to be struck by a vehicle and was in cardiac arrest," the release said.

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She was taken to a nearby hospital where she was pronounced dead at 11:18 a.m.

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Police said a witness gave them a license plate number and description of a commercial vehicle that possibly struck the victim.

Lake Success police were able to stop the vehicle described by the witness "a short distance away on East Shore Road," the release said. "It was determined that the commercial vehicle was involved."

Police did not provide any more information on the commercial vehicle, other than it was impounded.

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Anyone with information can call Crime Stoppers at 800-244-8477. All information will be kept confidential.