The aftermath of the first accident on the bypass road, as a MedFlight helicopter leaves the scene. I didn't see the accident itself, but judging by the scanner traffic, it involved a motorcyclist and was near the bend in the road where it meets Bridge St.
Update: Salem News has the details. It was a motorcyclist with "non-life-threatening" injuries. (Then why the Medflight?) According to several commenters on the Salem News, the motorcyclist was going 80 southbound from Beverly. He hit the bend and went flying. We are supposed to be surprised?