Authorities say a drag racing car drove off the track and struck spectators in the Texas Hill Country on Saturday afternoon, killing two children and injuring eight others.

Police in Kerrville, where the accident occurred, said in a statement Saturday evening that one youngster, a 6-year-old boy, died at the scene and a second boy, 8, died at a hospital.

A 46-year-old lady was critically hurt, a 27-year-old woman was critically injured, a 26-year-old male whose status was unknown, and a 34-year-old guy, identified as the driver, was characterized as "stable" by police.

Two other persons were treated and discharged at the scene, while a 3-month-old girl and a 4-year-old boy were sent to the hospital "for precautionary assessments," according to authorities.

According to authorities, the injured were brought to hospital facilities in Kerrville, Austin, and San Antonio.

The collision occurred at 3:20 p.m. at Kerrville Aviation's temporary track at the Kerrville-Kerr County Airport, roughly 65 miles northwest of San Antonio.

According to police, the driver lost control and off the runway, impacting onlookers and parked cars.

The accident is being investigated by the police.

The race was part of the event "Airport Race Wars 2." Requests for a response from organizers and an airport official were not immediately returned.

"The race is shut down and we ask that you please pray for everybody involved," said Ross Dunagan, the proprietor of race organizer Flyin' Diesel Performance & Offroad, an auto repair and tuning company near to the airport, in a Facebook video about an hour after the collision.