The body of a Miller County, Ark., prisoner was found in a jail cell during prisoner checks about 6:30 a.m. Wednesday, according to a statement from Sheriff Jackie Runion.
The jail staff was conducting routine checks and found the body of Markeisha Montgomery, 25, of Texarkana, Ark.
Detention center medical personnel and staff responded to treat Montgomery, and simultaneously notified EMS, Runion said.
Attempts to resuscitate Montgomery were unsuccessful, he said.
"Pursuant to policy, the Miller County Sheriff's Office notified the Arkansas State Police Criminal Investigation Division to initiate an investigation," Runion said.
Montgomery's body was submitted to the Arkansas State Medical Examiner's Office in Little Rock for a determination regarding the cause of death.
Montgomery was being housed alone in a cell, and had no significant physical interaction with other prisoners or Detention Center Staff other than routine interaction, he said.
Montgomery was booked into the Miller County Detention Center on a robbery charge by the Texarkana, Ark., Police Department at 11:30 p.m. on Nov. 9.
The investigation is ongoing while ASP and MCSO await final results from the medical examiner.