Pittsburgh Police from Zone 4 responded to a call for a male found deceased under the Birmingham Bridge just before 4:30 p.m.
The male was located on some rocks between Forbes and 2nd Avenue.
Major Crimes and the Crime Scene Unit processed the scene.
The cause and manner of death will be released by the Allegheny County Medical Examiner's Office.
Police continue to investigate.
Tonight, the City-County Building is illuminated to recognize Poison Prevention Week and the 50th Anniversary of "Mr. Yuk" in partnership with Children's Hospital of Pittsburgh of UPMC.
For questions about the lighting at the City-County Building, please reach out to the Office of the Mayor.