A 2-year-old girl who was sitting unrestrained in a driver's lap was killed Thursday evening in a one-vehicle crash in Kandiyohi County, the Sheriff's Office reported Friday.

First responders were called to SW. 225th Avenue just west of County Road 5 in Roseland Township just after 7 p.m. Thursday on a report of a vehicle rollover with injuries, Deputy Jason Keith said in a news release.

The driver, a 23-year-old woman from Clara City whose name has not been released, was headed west on 225th Avenue with the toddler in her lap when she lost control of her vehicle on loose gravel and the vehicle rolled over and into a ditch.

The driver, who was wearing a seat belt, suffered serious injuries and was transported to the hospital in Willmar.

The girl was airlifted by helicopter to a hospital in the Twin Cities but died of her injuries while on the way, the Sheriff's Office said.

An investigation of the crash continues.