A Prescott man and an unborn baby died in a three-vehicle crash just north of Poland Junction at about 1 p.m. on Saturday.
Arizona Department of Public Safety spokesman Danny Golden said Glenn Trotter, 64, of Prescott, was northbound when, for unknown reasons, he entered the median and rolled his Ford SUV into southbound traffic.
Two southbound vehicles, a red Chevy sedan driven by a Prescott man, 24, with a woman, 22, from Prescott Valley, and a maroon Kia sedan, driven by a 65-year-old Spring Valley woman, struck Trotter's vehicle, Golden said.
Trotter was pronounced dead at the scene. Helicopters flew the three other people involved in the crash to Phoenix area hospitals, where they still were undergoing treatment as of Monday, Golden said.
The female passenger in the Chevrolet was nine months pregnant, Golden said, and her baby later died as a result of the crash.
Neither the driver nor the passenger in the Chevrolet sedan was wearing a seat belt, he said.
Golden said officers are still investigating the cause of the accident, which caused the closure of southbound Highway 69 for nearly five hours.
"It's just a terrible tragedy," Golden said of the crash.
The accident was in Central Yavapai Fire's coverage area, and Mayer Fire, DPS and YCSO assisted them at the scene.