Two children killed in horror crash

Two children have been killed in a horror crash near Geraldton in Western Australia.

Seven more people were injured – three of them critically – when two vehicles collided on country roads.

Police are currently trying to determine what led to the crash.

The two children, a seven-year-old boy and a 10-year-old girl, were back-seat passengers of a grey Mazda 3 sedan that collided with a silver Ford F250 ute in Georgina, 15 minutes south-east of Geraldton.

The children died at the scene.

Three others involved in the crash were taken to Geraldton Hospital as priority patients, followed by two others, while another two people were treated at the crash site.

A man in his 30s, who was in the back seat with the children, is in a critical condition and has since been flown to Royal Perth Hospital.

All up, five people have been killed on Western Australian roads during the state's long weekend.