Officials with the Iowa Department of Corrections report an inmate assigned to the Clarinda Correctional Facility has died. Authorities say 51-year old Gregory Eugene Simmons died Wednesday morning at the Clarinda Regional Health Center. He had been vomiting excessively in his cell at the Correctional Facility. When emergency medical assistance arrived on the scene, they found Simmons was not breathing and did not have a pulse.

Emergency workers immediately began CPR and other life saving measures, but were unsuccessful. Simmons was then transported to the hospital, where he was pronounced dead at Noon, on Wednesday.

Officials say while it is believed Simmons died of unknown natural causes, an autopsy was ordered to determine the cause of death. However, initial indications were that there was no trauma, injury or foul play involved. Simmons was serving a 25 year sentence out of Marion County for Sex Abuse Second Degree. His sentence began December 13th, 2010.