Cairns detectives are continuing to investigate the alleged murder of Mt Isa couple Scott Maitland and Cindy Masonwells.
The pair has not been seen since arriving in Cairns over a week ago.
Police are appealing for public assistance in relation to the movements of a white van (pictured) on the night of Thursday July 5, between the hours of 9pm and 1am the next day.
Anyone who may have seen the vehicle or a similar vehicle either parked in an unusual location or being driven in a suspicious manner in the Cairns area during that time is being urged to contact police.
The vehicle is a white 2001 model Ford Econovan with white wheels. It has glass windows on the left side of the cargo area and painted steel panels on the right side.
Anyone with information which could assist police with their investigations should contact Crime Stoppers anonymously via 1800 333 000 or crimestoppers.com.au 24hrs a day.
Crime Stoppers is a charitable community volunteer organisation working in partnership with the Queensland Police Service.
