An inmate died Tuesday evening after suffering a medical emergency at the Bandera County jail, according to Sheriff Josh Teitge.

Jail staff were speaking with the inmate, who said they were not feeling well, when the individual collapsed, Teitge said. 

Staff immediately began CPR until emergency medical services personnel arrived and continued treatment efforts, but the inmate was unable to be revived.

An outside agency is required to investigate in-custody deaths, and Teitge said he elected to request assistance from the Texas Rangers.

No information about the inmate, including identity, is being released at this time, Teitge said.

The sheriff said the jail follows a combination of standards set by the Texas Commission on Jail Standards and local standard operating procedures when responding to medical incidents. 

Sheriff Teitge said those standards are subject to inspection by the commission, and the Bandera County jail passed its most recent inspection last month.

Teitge said more information will be released as it becomes available.