Authorities say a man's body was found inside a car that was partially submerged in the Boston Harbor near the University of Massachusetts-Boston campus.
A jogger on the walkway that follows the shoreline around the harbor noticed the car just after noon Saturday.
The body of a 25-year-old Lawrence man was found inside.
Police say it appears the car broke through the chain link fence that separates the walkway from the road before entering the water.
A spokesman for the Suffolk district attorney's office says the body showed no obvious signs of trauma but the cause of death hasn't been determined.
Police haven't released the man's identity.
The car was a silver Prius sedan with Connecticut license plates.
A preliminary investigation indicates the man was the sole occupant.