Advertisement 2 children killed in Yolo County crash Crash took place on Jefferson Boulevard Share Shares Copy Link Copy

Two children were killed in Yolo County Friday morning when the car they were riding in split in half after it crashed into a tree.A California Highway Patrol sergeant said the children were brothers, one about 5 years old, the other a toddler. Their mother was driving the car and was rushed by helicopter to UC Davis Medical Center, said Sgt. Brian Goldhammer.Watch report: Vehicle crash in Yolo Co. splits car in half, kills 2 childrenBut investigators are still trying to determine what led to the crash, which left the car in two pieces near a field on Jefferson Boulevard and Central Avenue near Clarksburg.Investigators had no reason to think the driver was drinking or under the influence of drugs and no reason to think she was speeding, Goldhammer said. However, she appeared to have made no attempt to stop the car.“There is not a lot of tire friction marks on the roadway that would indicate, when someone is about to crash, to slam on the brakes and slow the vehicle,” Goldhammer said. “Usually, the tires put rubber down on the roadway, and we don’t have any of that at the scene.”A passerby lamented the condition of the roadway Friday, saying he has had to swerve to avoid undulations in the road."It’s a very uneven and rough road," said Tim Neuharth. “I don’t care for it. I don’t know why this hasn’t been taken care of a long time ago. It should have been. It’s a much-used highway. It’s a state highway, 84.”Farm workers heard the impact of the crash, ran to the scene and reported it, Goldhammer said. It’s not clear if anyone saw the accident happen.The driver was talking to officers when she was being taken to the hospital. She is expected to recover.