Three West Australian children have died in a high-speed car crash in Denmark, but their mother and baby sibling survived.
The nine-year-old girl and two boys, aged three and 11, were killed when a car being driven by their mother was t-boned by another vehicle travelling in the opposite direction.
Their father was not in the car at the time and was instead with his father-in-law, whom the family of six had travelled to visit in the country's north.
The mother moved from Denmark several years ago to the town of Pemberton in WA's south west after she married the Australian man.
A Danish police spokesman said the family's names would not be released.
The crash occurred close to the town of Lendum, near Sindal, just before 10am local time on Tuesday.
The police spokesman said the weather was clear and sunny, but the woman probably didn't see the other car as she turned.
He said the impact was severe as the other vehicle was travelling at 80km/h.
The mother and her four-and-a-half month old baby were brought to a hospital in Hjorring for medical treatment.
"The mother was very shocked, but was not unconscious," the spokesman told AAP.
"The other person in the other car was also shocked, but not hurt.
"It was a really bad accident - it was so awful up there for the witnesses."
The husband was called to the scene.
A Department of Foreign Affairs and Trade spokeswoman said consular officers from the Australian Embassy in Copenhagen would provide assistance to the family.
"We offer our deepest condolences to the family," the spokeswoman said.
