San Antonio police are investigating the death of a man who was found Monday afternoon on the Southeast Side.

The Bexar County Medical Examiner's Office said the man was pronounced dead around 2:30 p.m, but the man's name or age have not been released.

The man's body was found along Interstate 37 at South Military Drive. The medical examiner has not released a cause of death and the circumstances surrounding the death were unknown Tuesday morning.