A Dallas County jail guard is facing deportation for allegedly being in the country illegally.
Officials say federal immigration officers arrested 34-year-old Maria Elvia Ross on Friday after a background check revealed her status.
He says finding out was a "shock" and the department should have caught it when she was first hired.
Sheriff spokeswoman Kim Leach says the matter is under investigation.
The Associated Press could not find a phone listing for Ross, and no attorney information was available from authorities.