Two children, one adult killed in car and truck crash

Two children and an adult have been killed in a horror crash between a car and a truck at Stoneleigh, west of Ballarat in Victoria.

It happened at the intersection of Eurambeen-Streatham and Mount William roads shortly after 9.30am on November 11, with the car appearing to have rolled and been crushed, according to police.

An adult and two children died at the scene, however, their ages have not been confirmed.

"Another adult, who was trapped in the vehicle, has life-threatening injuries and is expected to be airlifted to hospital," a Victoria Police spokesperson said.

"The area has been cordoned off and the surrounding roads are blocked while police and emergency service personnel respond to the scene.

Police are expected to speak further on the tragedy on Tuesday afternoon.