The Iowa State Medical Examiner says both of the victims who died in a western Iowa bus fire on December 12th died of smoke and soot inhalation coupled with thermal injuries.
The deaths of Megan Klindt, 16, and Donnie Hendricks, 74, have been ruled accidental.
The fire broke broke out around 7 a.m. that day. Investigators said the vehicle had just backed out of a farm driveway when it went into a ditch across the road.
Deputies arrived on scene around 7:20 a.m. but were unable to board the bus. It was fully engulfed in flames.
Fire department crews from Carson and Oakland extinguished the fire.
This was the first stop on the bus route. No one else was on board.