Police are on the lookout for the driver of a white ute suspected to be involved in a fatal road rage incident in Blackett, west of Sydney.
Emergency services responded to Jersey Road in Blackett around 8.45am after a pedestrian was hit by a ute.
The victim, a 27-year-old man in hi-vis clothing, succumbed to his injuries after being struck by the vehicle whose driver fled the scene.
Authorities have cordoned off the area and launched an investigation into the incident.
Possible witnesses with relevant information or footage are requested to contact Crime Stoppers on 1800 333 000.