*Update* A guard and three inmates remain in critical condition while another felon was listed as serious after a West Texas prison bus wreck that left 10 people dead.
Corrections officer Jason Self remained in critical condition Thursday at University Medical Center in Lubbock.
Four inmates were at Medical Center Hospital in Odessa. Terry Lavell Johnson Jr., Damien Anthony Rodriguez and Hector Rivera were in critical condition. A hospital spokeswoman says Remigio Pineda remains in serious condition.
Authorities continue their investigation into the accident in Penwell, just west of Odessa. Two guards and eight inmates were killed.
This is an update to a previous story. The original version is as follows:
Ector County Sheriff Mark Donaldson says the overpass on Interstate 20 was slick with ice Wednesday morning when the Texas Department of Criminal Justice (TDCJ) bus left the roadway just west of Odessa.
TDCJ spokesman Jason Clark says the bus was carrying 12 prisoners and three corrections officers. Clark says the bus was traveling from Abilene to El Paso.
A spokeswoman says Medical Center Hospital in Odessa is treating five patients but no other information was available.
Lieutenant Governor-elect Dan Patrick released the following statement regarding the accident:
"I am deeply saddened by the news that two correctional guards died, along with eight inmates, in connection with a tragic accident in West Texas on Interstate 20 early this morning. I extend my sincere sympathies to the families of the correctional officers involved.
"Their dedication and service to the State of Texas will be missed and my prayers also go out to the entire staff of TDCJ and the offenders' families for their loss.
"I also pray for a speedy recovery of a third correctional staff member and four offenders who were transported with injuries."
The Associated Press contributed to this report.