The fatal crash took place on Highway 1 in Oil City just after 4 pm.
The driver of the sedan was prounced dead on the scene.
The driver of the SUV was taken to North Caddo Hospital with moderate injuries.
KSLA News 12 is awaiting the results of her drug and alcohol screening.
Deputies report finding empty liquor bottles and prescription drug bottles in her car.
The crash happened just thirty yards from a Caddo Sheriff's command post on Highway 1; so close deputies could hear the collision from inside their building.
Story By Ben Wolf