Authorities say an incident between two cars driving south on Route 3 in Duxbury escalated with the driver of a luxury vehicle opening fire on an SUV and wounding the driver.
Plymouth District Attorney Timothy Cruz says the victim left his vehicle on Saturday and a passer-by took him to a police station, from where he was taken to hospital for treatment. Authorities did not describe the severity of his injuries.
Cruz says it appears that people in the two cars know each other.
Authorities did not release the names of the gunman or the victim.
Cruz says the gunman has been arrested and charged with armed assault with intent to murder. He will be arraigned Monday in the Plymouth District Court. It was not immediately clear if he has an attorney.