Authorities are working to learn the identity of a body found in a rural community south of Sullivan City.
Hidalgo County Sheriff's Office are investigating the discovery.
Border Patrol told Action 4 News that a Rio Grande Valley agent found the body in a brushy area near the U.S./Mexico border.
Agents reported that the body was found south of Military Road just west of the rural community of Cuevitas.
Sheriff Lupe Trevio told Action 4 News that it appears to be an accidental drowning of an illegal immigrant.
Homicide investigators could not detect any signs of foul play.
An autopsy has been ordered to learn the identity of the body and more about the person's death.