Camp Hill: Three children among dead in 'horrific' Australia car fire

Four people, including three children, have died after a car was allegedly set alight in the Australian city of Brisbane, police said.

The children, all under the age of 10, were found dead in the car by emergency responders, said Queensland Police.

A man known to the victims has also died, while a woman suffered extensive burns and has been taken to hospital.

Police have established a crime scene in the suburban street in Camp Hill in the city's east.

"It's a horrific scene," Det Insp. Mark Thompson told reporters on Wednesday.

"It is very early in the investigation, but the vehicle was fully involved in fire upon police arriving," he said. Paramedics said they had also treated a passerby, who had "tried his best to get to the car". He had suffered some "facial burning" and also been taken to hospital, a Queensland Ambulance spokesman said.

Det Insp. Thompson confirmed the group in the car had lived locally. Police were first called to the scene at 08:30 local time (21:30 Tuesday GMT).