The Forensic Crash Unit is investigating after three people died in a crash involving a bus at Gumlu, north of Bowen on Sunday, June 30.
Initial investigations indicate that just after 11am, a caravan and bus collided on the Bruce Highway.
Three passengers on the bus died at the scene, including a woman in her thirties, a woman in her twenties and a 56-year-old Townsville woman.
Multiple other people were taken to hospital, some with serious injuries.
The highway reopened both lanes to traffic just after 12am on July 1.
Anyone with information that could assist investigations, including vision of the crash, is urged to contact police.
Earlier:
If you have information for police, contact Policelink by providing information using the online suspicious activity form 24hrs per day at www.police.qld.gov.au/reporting.
Report crime information anonymously via Crime Stoppers. Call 1800 333 000 or report online at www.crimestoppersqld.com.au.