The woman killed in a crash Friday night west of Flandreau has been identified.
Around 10:30 p.m. a pickup was heading north on 474th Avenue when it failed to stop for a stop sign, and it collided with an eastbound pickup on Highway 32, according to police.
A passenger in the pickup traveling eastbound, 39-year-old Candice Peterson, was pronounced dead at the scene.
The driver of the pickup traveling northbound sustained serious life-threatening injures.
South Dakota Highway Patrol continues to investigate the crash.