UPDATE: The Kentucky State Police have provided more information on Monday's crash that killed two Iowans and has injured another woman from the state.
Officers say 55-year-old Mary Engrav was driving a Ford F-150 at the time of the crash, which happened Monday morning around 9:50 a.m. along Interstate 24 in Christian County, Kentucky. Engrav was from Waukon, as was 58-year-old Joan Lyons, who was in the back seat of the truck. A third woman, 61-year-old Barbara Winters-Kelly from Waterville, was in the front passenger seat.
Police say a semi truck was unable to stop for traffic that was stopped on the road, and crashed into Engrav's truck. The collision then forced her truck to run into the back of another semi truck that was stopped ahead of them on the road.
Authorities pronounced Engrav dead at the scene, while Lyons later died from her injuries after being airlifted to a Tennessee hospital. Winters-Kelly was taken to a different Tennessee hospital with injuries that are not believed to be life-threatening.
Nine total vehicles were involved in the chain reaction crash, and several of them caught fire, according to police. Five more people were taken to hospitals following the crash, but are expected to recover from their injuries.
The Kentucky State Police say two women from eastern Iowa died following a fiery crash on a Kentucky interstate.
The crash involved nine cars, according to police, and three semi-trailer trucks on Interstate 24 in Christian County, Kentucky Monday morning around 10:30 a.m. It happened just across the Kentucky-Tennessee border northwest of Clarksville.
Officers confirm Mary Engrav, of Waukon, died at the scene of the crash. Joan Lyons, also from Waukon, was in the same car as Engrav. Lyons was airlifted to a hospital in Nashville, Tennessee, but later died from her injuries.
A third Iowan was also involved in the crash. Kentucky police say Barbara Winters-Kelly, of Waterville, in Allamakee County, was taken to a hospital in Clarksville, Tennessee. Officers say Winters-Kelly's injuries are not believed to be critical.
The Christian County Emergency Management Director says 12 agencies responded to the scene of the crash. The portion of the interstate where the collision happened was closed for 15 hours before reopening early Tuesday morning.
A Kentucky State Police spokesperson said they are still investigating what caused the crash.
KWWL contributed to this story.