Cesar Sierra Caal, 30, was last seen August 2, 2018, in McAllen, Texas. He is believed to have been a migrant attempting to cross from Mexico into the United States at an unknown point along the Rio Grande River. Cesar is described as Hispanic, about 5 feet 5 inches tall, 140 pounds, with black hair.

His whereabouts remain unknown and the case is open. The circumstances noted—migration across the river at an unspecified location—reflect the same dangers and limited visibility that affect many disappearances in that border area.

If anyone has information about where Cesar was last seen or the route he took, please share what is known with the appropriate authorities.