An unidentified man's body was recovered from the Muddy River under the Bowker Overpass, past Kenmore Square, on Sunday afternoon, according to Massachusetts State Police.
Both state and city police responded at about 2:30 p.m. to a report of a body in the water. Boston fire officials recovered the body.
A medical examiner will conduct an autopsy to determine the cause and nature of death, according to the Boston Herald.
State troopers assigned to the Suffolk County District Attorney's Office are investigating the incident.