A 51-year-old Massachusetts man who was working with a local paving company had his foot severed after a paving machine ran over his foot, the Plymouth fire chief said. First responders were called to Empire Road Thursday evening for the victim who was hurt while paving a driveway in the area. Fire chief Ed Bradley said the paving company was done for the day and was loading up the equipment onto a truck when the accident happened. Bradley said a failure of the trailer hitch was responsible for the accident. The worker was treated at the scene by Plymouth firefighters before being flown to a Boston area hospital for treatment. The Occupational Safety and Health Administration and Massachusetts State Police were called to the scene to document the conditions and to assist in the investigation.