A Turlock woman sustained fatal injuries in a crash in South Dakota that also claimed the life of two others and left her husband critically injured.

The Turlock woman was identified as 66-year-old Patricia Smith Sunde. Her husband, Tracy A. Sunde, 68, of Turlock suffered severe injuries in the collision and is in critical condition at a hospital in Rapid City.

Both of the Sundes were very active in the Turlock Democratic Club. Patricia Sunde served as the group’s secretary and Tracy Sunde is the club’s treasurer.

“This is a shock to all of us,” club President Brenda Smith wrote on the club’s website. “Patti and Tracy have been good friends to us, as well as members of the Turlock Democratic Club.”

The collision happened on the afternoon of Aug. 23 on U.S. Highway 85 in South Dakota.

Tracy Sunde was driving a 2003 Acura southbound on the highway. A 1957 Chevrolet was headed northbound. For an unknown reason the driver of the Chevrolet allowed it to drift off the side of the highway and then overcorrected, sending the vehicle across the centerline and into the path of the Acura.

Patricia Sunde was pronounced dead at the scene of the collision, according to the Black Hills Pioneer newspaper. The driver of the Chevrolet, Jennifer Ann Werts, 28, of Torrington, Wyo., and her passenger, Andrew Eugene Tollman, 38, of Lusk, Wyo., also were both pronounced dead at the scene, the newspaper reported.

Tracy Sunde was taken to a hospital in Spearfish, S.D., and then transferred to Rapid City.

Both of the Sundes were wearing their seat belts. Neither Werts nor Tollman were wearing theirs.