Seven people, including four children, were killed when a car veered into oncoming traffic and ran head-on into another car.

Three children between the ages of 4 and 7 and two adults in the car that swerved were pronounced dead at the scene, the Kansas Highway Patrol said. Two other children in the car were taken to Children's Mercy Hospital in Kansas City.The driver and a child between 10 and 12 years old in the second car also died at the scene, authorities said. Three other passengers were taken to hospitals.