SOUTH YANKTON, Neb. (AP) — Authorities say a collision that killed a Norfolk woman in northeast Nebraska’s Cedar County also claimed the life of her 2-year-old son.

The accident occurred about 10:15 a.m. Saturday on U.S. Highway 81 just south of Yankton, South Dakota. The Nebraska State Patrol says the northbound car crossed the center line and collided with an oncoming semitrailer.

The patrol says the car driver, 42-year-old Laura Suhr, died at the scene. Authorities say her 2-year-old son, Sean, died later at a hospital. An 11-year-old child traveling with them was taken to a hospital in Yankton. A hospital spokesman couldn’t immediately provide any information Monday.

The patrol says the truck driver wasn’t hurt.