City Carrier Assistant Anthony Robertson was recently delivering mail in Marinette, WI, when he witnessed a single-car accident.
While a passerby called 911, Robertson rushed to the overturned vehicle to check on the driver.
The Postal Service employee rendered aid by safely climbing atop the wreck, opening the door and turning off the ignition.
Robertson stayed with the victim until emergency responders arrived, and he provided a statement to police before continuing his deliveries.