Man in his 70s dead and two others flown to Perth with serious injuries after sickening crash on Brand Highway

A 70-year-old man died and two others were seriously injured in a sickening Brand Highway crash near Badgingarra on Monday afternoon.

Emergency services rushed to the scene of the crash, 50km east of Jurien Bay, just after noon following a horror head-on collision between a Mitsubushi Triton and a Mazda BT-50.

The Mitsubishi was towing a caravan south on Brand Highway, while the Mazda was carrying a trailer north.

The 70-year-old man, a passenger in the Triton, died at the scene.

The 68-year-old woman driving the Triton and the 72-year-old man driving the BT-50 were flown to Perth with serious injuries.

An RAC rescue helicopter flew the 68-year-old woman to Royal Perth Hospital, where she was in a stable condition inside the State major trauma unit on Tuesday.

The 72-year old man was taken by St Johns Ambulance to Jurien Bay Health Centre and then flown to Perth by the Royal Flying Doctor Service with non-life threatening injuries.

A 6km section of Brand Highway was closed for several hours between Watheroo Road and Boothendarra Road while police attended the scene.

Major crash investigators are appealing for any witnesses to contact Crime Stoppers on 1800 333 000.

As of Tuesday morning, 87 people had lost their lives on regional WA roads this year - the highest death toll since 2016.

More than 150 people died on WA roads last year.