WFR Responded to a 2 vehicle accident in the 100 block of 19th St NE at 8:45 pm. Thursday night.  Upon arrival Watertown Fire found 2 vehicles that had collided, both appearing to have been southbound. Air bags deployed in both vehicles, and one patient was transported to Prairie Lakes Hospital with undisclosed injuries.  There was significant debris on the road, and traffic was shut down for about an hour.  Weather did not appear to be a factor in the accident.  WFR reminds you to buckle up, and make sure your headlights are operational prior to driving your vehicle after dark.