A high-speed crash on the Bruce Highway in Queensland, Australia, involving a tourist bus and a four-wheel drive pulling a caravan has resulted in three women dead and many others injured.

The Greyhound bus, carrying 33 passengers, collided with the 4WD near Gumlu in the Whitsundays region.

Two young men are in critical condition in a north Queensland hospital.

Seven others have been transferred to Townsville University Hospital, while two additional passengers are in stable condition.

Queensland police are still investigating the cause of the crash, which occurred in a challenging area of the highway.

The highway has since reopened, but authorities are urging people to avoid the area as investigations continue.

Greyhound Australia has expressed condolences for the passengers who lost their lives on the Brisbane to Townsville service.

Queensland police have emphasized the importance of a thorough investigation into the crash.