Police investigations into fatal car crash into water at Wyaralong dam continue, toddler critical

Police are continuing to investigate a fatal crash that killed two children at a south-east Queensland dam on Sunday.

Queensland police said two adults and four children were in a Land Rover Discovery when it broke through a road barrier, rolling down an embankment before ending up on its roof in water at Wyaralong dam, near Beaudesert, about 2:00pm.

Passers-by, including two doctors and an off-duty paramedic, helped pull them from the vehicle, but a four-year-old girl and a 13-year-old boy died at the scene.

A one-year-old boy was flown to hospital in a critical condition after the crash.

A baby was treated at the scene.

Two adults — a man, 23, and a woman, 33 — were also taken to hospital with leg injuries.

All are from the same family.