A CHILD has been killed in a traffic crash at Buaraba, 61km east of Toowoomba, overnight.

Initial investigations indicate about 7.50pm two cars travelling in opposite directions collided on the Gatton Esk Rd near the intersection of Buaraba Creek Rd.

A three-year-old girl from Esk died at the scene.

A 25-year old female has been airlifted to Royal Brisbane and Women's Hospital with serious injuries.

A 24-year-old male has been transported to the Princess Alexandra Hospital with serious injuries.

A four-year-old boy has been transported to Gatton Hospital with non-life threatening injuries.

The driver of the other vehicle, a 24-year-old male, has been transported to Gatton Hospital with non-life threatening injuries.