ENID, Okla. (AP) An 80-year-old inmate at the Garfield County jail has been found dead in his cell.

Undersheriff Jerry Niles says Clifton Adkins was found dead during an hourly cell check about 1:20 a.m. Wednesday. A cause of death has not been released but Niles says it appears to be from natural causes.

Adkins was being held for failure to appear in court on a driving under the influence charge.