Boy, woman dead after grain truck crashes into car carrying four kids

A boy and a woman have died after a semi-trailer crashed into the back of a car carrying four young children in the Wheatbelt after the driver had left the car to get petrol in a nearby town on Sunday night.

Police spokeswoman Ros Weatherall said about midnight the woman and four children aged 10, eight, five and three were waiting in a Holden Commodore that was towing a trailer on the Brookton-Corrigin Road, about 28 kilometres west of Corrigin, after they had ran out of petrol.

After the driver had left the car to walk to Corrigin to get fuel a semi-trailer towing grain, driven by a 46-year-old man, came around the bend of the road and crashed into the rear of the car.

The car and the truck were pushed into a nearby paddock. St John ambulance rushed to the accident but a 26-year-old woman and a 10-year-old boy died at the scene.

Two boys, aged eight and five were seriously injured and a three-year-old girl suffered minor injuries. All three were flown to Perth Children's Hospital by the RAC Rescue Helicopter.

The driver of the vehicle, a 27-year-old Corrigin man, was located by police walking along the Brookton-Corrigin Road around 11 km west of the town.

Police are currently at the scene and road closures are in place.