BOYNTON BEACH, Fla. (CBS12) -- A Jupiter man was killed by a hit-and-run driver early Saturday morning while walking near the center line of the roadway in Boynton Beach.

The Palm Beach County Sheriff's Office (PBSO) said 60-year-old Robert Elsmore was pushing an empty wheelchair when struck from behind while walking near the 6000 block of Old Congress Road around 2 a.m.

Elsmore was taken to the hospital and pronounced dead upon arrival.

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The vehicle left the scene, and investigators determined that the vehicle parts found at the scene identify the car as a dark blue or black Honda.

The investigation is ongoing.